Q: What is the sum of all factors of the number 20,421,521 excluding 20,421,521?
A: 551,971
The factors of the number 20,421,521 are: 1, 37, 551933, 20421521.
If you add them up, you will get the total of 20,422,072. Now subtract 20,421,521 to get 551,971