A perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself.

For example, 6 is a perfect number, its proper divisors are 1, 2, and 3, and 1 + 2 + 3 = 6.

Write a program that brings all the perfect numbers less than 1000. Name your program Perfect_yourInitials.java where yourInitials represents your initials.