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I have a question I did not understand if anyone of you understood it please explain to me

**suppose that m and n are integers and m is nonzero. Recall that m is called a divisor of n if n=mt for some integer t; that is, when m divides n, the remainder is 0. moreover .m is called a proper divisor of n if m<n and m divides n. a positive integer is called perfect if it is the sum of its positive proper divisors. for example, the positive proper divisors of 28 are 1,2,4,7 and 14 and 1+2+4+7=28. therefore 28 is perfect. write a program that does the following;
a.output the first four perfect integers.
b.takes as input a positive integer and then outputs whether the integer is perfect.**

and thank you a lot