input: Write a function to print all the divisors of a given number input by the user.
  
  def print_divisors():
      divisors = []
      num = int(input('Enter a number: '))
      
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      
      print('The divisors of', num, 'are:')
      print(*divisors, sep=', ')
  
  assert print_divisors()
  assert print_divisors()
output: def print_divisors():
      divisors = []
      num = int(input('Enter a number: '))
      
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      
      print('The divisors of', num, 'are:')
      print(*divisors, sep=', ')