Part I: Sum Digits of an Integer...with a Catch (10 points) Write a function sum_digits() that takes one argument, a positive integer named number, and which sums the digits according to the following rules: if a digit is even, add it to the sum or, if the original value of number is divisible by the digit, add the digit to the sum To keep things simple, we will assume that every digit is non-zero. If the digit is both even and divides number, do NOT add it twice to the sum. Here’s an example. Suppose that number equals 7863. 8 and 6 are both even, so we will include them in the total. 7 and 3 are not even, but the original number (7863) is divisible by 3, so we will include 3 in the total also. The original number is not divisible by 7, so we won’t include 7. Therefore the return value is 8 + 6 + 3 = 17.