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JAVA Write a method: boolean isPerfectNumber(int n) which returns true if n is a perfect number. A perfect number is a number which is the

JAVA

Write a method:

boolean isPerfectNumber(int n)

which returns true if n is a perfect number.

A perfect number is a number which is the sum of its own divisors (all divisors, not just prime divisors). The first three perfect numbers are:

6 = 1 + 2 + 3

28 = 1 + 2 + 4 + 7 + 14

496 = 1 + 2 + 4 + 8 + 16 + 31 + 62 + 124 + 248

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