Q: What is the sum of all factors of the number 31,603 excluding 31,603?
A: 7,925
The factors of the number 31,603 are: 1, 11, 13, 17, 143, 169, 187, 221, 1859, 2431, 2873, 31603.
If you add them up, you will get the total of 31,610. Now subtract 31,603 to get 7,925