Q: What is the sum of all factors of the number 21,455 excluding 21,455?
A: 8,017
The factors of the number 21,455 are: 1, 5, 7, 35, 613, 3065, 4291, 21455.
If you add them up, you will get the total of 21,463. Now subtract 21,455 to get 8,017