need help programing this in C

Perfect Number - Determine whether input value is a perfect number A Perfect Number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of ts positive divisors excluding the number itself. For example, 6 is a perfect number, because its divisors are 1, 2, and 3, and their sum is equal to the number itself The program should read a single integer value and print a single line of output. If the input value is a perfect Perfect Number If the input value is not a perfect number, the output should be Not a Perfect Number Hint: If the input value is n, all of its proper divisors will be less than or equal to n/2