In mathematics, a number is considered to be perfect when the sum of its proper factors add to the original number. For example 28 is perfect because its factors: 1,2,4,7,14 add up to 28.

Write a program in Python that exercises the functional higher order functions via Python list comprehensions to determine if a number is perfect or not. Write a function named is_perfect(num) that returns true/false if the given number is/is not perfect.

Use the built in Python function called range(n) that returns a list of integers between 0 and n-1 inclusive.

Use map implemented as a Python List Comprehension to add one to each element of the list.

Use filter implemented as a Python List Comprehension to generate a list of proper factors of n.

Use the Python reduce to generate a sum of those factors