Q: What is the sum of all factors of the number 21,072,419 excluding 21,072,419?
A: 21,661
The factors of the number 21,072,419 are: 1, 1021, 20639, 21072419.
If you add them up, you will get the total of 21,072,440. Now subtract 21,072,419 to get 21,661