Deficient Numbers #3 different method

deficient_numbers.rb

def is_deficient(num)
  sum = 0
  (1..num).each {|i| sum += i if num % i == 0}
  if sum  < (2 * num)
    "#{num} is deficient number"
  else
    "#{num} is not deficient number"
  end
end

def find_deficients(range)
  (1..range).each do |num|
    sum = 0
    (1..num).each {|i| sum += i if num % i == 0}
    if sum  < (2 * num)
      puts num
    end
  end
end

def is_deficient_v2(num)
  sum = 0
  print "Factors: "
  (1..num).each do |i|
    if num % i == 0
      print "#{i}, "
      sum += i
    end
  end
  print "\nSum of factors: #{sum}"
  if sum < (num * 2)
    print "\n#{num} is deficient number"
  else
    print "\n#{num} is not deficient number"
  end
end