Q: What is the sum of all factors of the number 4,257 excluding 4,257?
A: 2,607
The factors of the number 4,257 are: 1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257.
If you add them up, you will get the total of 4,259. Now subtract 4,257 to get 2,607