Q: What is the sum of all factors of the number 21,780,767 excluding 21,780,767?
A: 138,889
The factors of the number 21,780,767 are: 1, 157, 138731, 21780767.
If you add them up, you will get the total of 21,780,905. Now subtract 21,780,767 to get 138,889