input: Write a function to take a number and print all the divisors of the number.
  def find_divisors(num):
      divisors = []
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      return divisors
  assert find_divisors(12)==[1, 2, 3, 4, 6, 12]
  assert find_divisors(15)==[1, 3, 5, 15]
  assert find_divisors(1)==[1]
  assert find_divisors(0)==[]
output: def find_divisors(num):
      divisors = []
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      return divisors