Q: What is the sum of all factors of the number 258,903 excluding 258,903?
A: 135,337
The factors of the number 258,903 are: 1, 3, 9, 27, 43, 129, 223, 387, 669, 1161, 2007, 6021, 9589, 28767, 86301, 258903.
If you add them up, you will get the total of 259,038. Now subtract 258,903 to get 135,337