Q: What is the sum of all factors of the number 978,243 excluding 978,243?
A: 553,917
The factors of the number 978,243 are: 1, 3, 7, 21, 37, 111, 259, 777, 1259, 3777, 8813, 26439, 46583, 139749, 326081, 978243.
If you add them up, you will get the total of 978,796. Now subtract 978,243 to get 553,917