Q: What is the sum of all factors of the number 3,900,621 including 3,900,621?
A: 5,211,360
The factors of the number 3,900,621 are: 1, 3, 659, 1973, 1977, 5919, 1300207, 3900621.
If you add them up, you will get the total of 5,211,360.