Q: What is the sum of all factors of the number 2,121,257 excluding 2,121,257?
A: 3,943
The factors of the number 2,121,257 are: 1, 643, 3299, 2121257.
If you add them up, you will get the total of 2,121,260. Now subtract 2,121,257 to get 3,943