Q: What is the sum of all factors of the number 1,200,421 including 1,200,421?
A: 1,280,664
The factors of the number 1,200,421 are: 1, 17, 241, 293, 4097, 4981, 70613, 1200421.
If you add them up, you will get the total of 1,280,664.