Q: What is the sum of all factors of the number 12,402 excluding 12,402?
A: 17,082
The factors of the number 12,402 are: 1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 2067, 4134, 6201, 12402.
If you add them up, you will get the total of 12,419. Now subtract 12,402 to get 17,082