Q: What is the sum of all factors of the number 1,242,213 excluding 1,242,213?
A: 668,187
The factors of the number 1,242,213 are: 1, 3, 7, 21, 149, 397, 447, 1043, 1191, 2779, 3129, 8337, 59153, 177459, 414071, 1242213.
If you add them up, you will get the total of 1,242,881. Now subtract 1,242,213 to get 668,187