Weird numbers (#6871)

* Create weird_number.py

In number theory, a weird number is a natural number that is abundant but not semiperfect

* check

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* resolved

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* removed

* Update weird_number.py

* Update weird_number.py

* Update weird_number.py

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>