Q: What is the sum of all factors of the number 10,251 excluding 10,251?
A: 5,661
The factors of the number 10,251 are: 1, 3, 9, 17, 51, 67, 153, 201, 603, 1139, 3417, 10251.
If you add them up, you will get the total of 10,256. Now subtract 10,251 to get 5,661