Q: What is the sum of all factors of the number 27,405 excluding 27,405?
A: 30,195
The factors of the number 27,405 are: 1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 783, 945, 1015, 1305, 1827, 3045, 3915, 5481, 9135, 27405.
If you add them up, you will get the total of 27,435. Now subtract 27,405 to get 30,195