Q: What is the sum of all factors of the number 422,721 including 422,721?
A: 657,748
The factors of the number 422,721 are: 1, 3, 9, 13, 39, 117, 3613, 10839, 32517, 46969, 140907, 422721.
If you add them up, you will get the total of 657,748.