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We define the Perfect Number is a positive integer that is equal to the sum of all its
positive divisors except itself.
Now, given an
integer n, write a function that returns true when it is a perfect number
and false when it is not.
Example:
Input: 28
Output: True
Explanation: 28 = 1 + 2 + 4 + 7 + 14
Note:
The input number n will not exceed 100,000,000. (1e8)
Difficulty:
Easy
Lock:
Normal
All contents and pictures on this website come from the Internet and are updated regularly every week. They are for personal study and research only, and should not be used for commercial purposes. Thank you for your cooperation.