Ruby program to print perfect numbers from 1 to 1000

Write Ruby program to print perfect numbers from 1 to 1000

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 its positive divisors excluding the number itself.

class PerfectNumber

  def printPerfectNumbers

    i=1

    sum=0

    (1..1000).each do |n|

      i = 1

      sum = 0

      while i < n do 

        sum = (sum + i) if n % i == 0

        i = i + 1

      end

      puts n if sum == n

    end

  end

end

p = PerfectNumber.new 

p.printPerfectNumbers

Output:

  
6
28
496