Q: What is the sum of all factors of the number 16,218 excluding 16,218?
A: 21,690
The factors of the number 16,218 are: 1, 2, 3, 6, 9, 17, 18, 34, 51, 53, 102, 106, 153, 159, 306, 318, 477, 901, 954, 1802, 2703, 5406, 8109, 16218.
If you add them up, you will get the total of 16,239. Now subtract 16,218 to get 21,690