Q: What is the sum of all factors of the number 31,671 excluding 31,671?
A: 20,601
The factors of the number 31,671 are: 1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 621, 1173, 1377, 1863, 3519, 10557, 31671.
If you add them up, you will get the total of 31,691. Now subtract 31,671 to get 20,601