Q: What is the sum of all factors of the number 642,999 excluding 642,999?
A: 353,609
The factors of the number 642,999 are: 1, 3, 7, 21, 67, 201, 457, 469, 1371, 1407, 3199, 9597, 30619, 91857, 214333, 642999.
If you add them up, you will get the total of 643,352. Now subtract 642,999 to get 353,609