Q: What is the sum of all factors of the number 19,856 excluding 19,856?
A: 21,436
The factors of the number 19,856 are: 1, 2, 4, 8, 16, 17, 34, 68, 73, 136, 146, 272, 292, 584, 1168, 1241, 2482, 4964, 9928, 19856.
If you add them up, you will get the total of 19,877. Now subtract 19,856 to get 21,436