public class ThePerfectNumber {
  public static void main(String[] args) {
    int[] randNums = { 2, 5, 6, 15, 23, 26, 34, 53, 343, 2454, 28 };
    for (int number : randNums) {
      if (isPerfect(number)) {
        System.out.println(number + " is a perfect number");
      } else {
        System.out.println(number + " is NOT a perfect number");
      }
    }
  }

  private static boolean isPerfect(int num) {
    int total = 0;
    for (int i = 1; i <= num / 2; i++) {
      if (num % i == 0) {
        total += i;
      }
    }
    return total == num;
  }
}