Q: What is the sum of all factors of the number 63,987 excluding 63,987?
A: 42,765
The factors of the number 63,987 are: 1, 3, 7, 11, 21, 33, 77, 231, 277, 831, 1939, 3047, 5817, 9141, 21329, 63987.
If you add them up, you will get the total of 64,029. Now subtract 63,987 to get 42,765