Update basic_maths.py
diff --git a/maths/basic_maths.py b/maths/basic_maths.py
index 58e797772a28..26c52c54983e 100644
--- a/maths/basic_maths.py
+++ b/maths/basic_maths.py
@@ -57,6 +57,8 @@ def number_of_divisors(n: int) -> int:
             temp += 1
             n = int(n / i)
         div *= temp
+    if n > 1:
+        div *= 2
     return div
 
 

### Describe your change:



* [ ] Add an algorithm?
* [X] Fix a bug or typo in an existing algorithm?
* [ ] Documentation change?

### Checklist:
* [X] I have read [CONTRIBUTING.md](https://github.com/TheAlgorithms/Python/blob/master/CONTRIBUTING.md).
* [X] This pull request is all my own work -- I have not plagiarized.
* [X] I know that pull requests will not be merged if they fail the automated tests.
* [X] This PR only changes one algorithm file.  To ease review, please open separate PRs for separate algorithms.
* [X] All new Python files are placed inside an existing directory.
* [X] All filenames are in all lowercase characters with no spaces or dashes.
* [X] All functions and variable names follow Python naming conventions.
* [X] All function parameters and return values are annotated with Python [type hints](https://docs.python.org/3/library/typing.html).
* [X] All functions have [doctests](https://docs.python.org/3/library/doctest.html) that pass the automated testing.
* [X] All new algorithms have a URL in its comments that points to Wikipedia or other similar explanation.
* [X] If this pull request resolves one or more open issues then the commit message contains `Fixes: #{$ISSUE_NO}`.
