Q: What is the sum of all factors of the number 261,661,251 excluding 261,661,251?
A: 87,220,421
The factors of the number 261,661,251 are: 1, 3, 87220417, 261661251.
If you add them up, you will get the total of 261,661,338. Now subtract 261,661,251 to get 87,220,421