21109268

素因数分解:

$2^2\times {\mathrm{613}}^1\times {\mathrm{8609}}^1$

素因数の和:9226

約数の個数: 12

約数和(自身を含む): 37005780

約数和(自身を除く): 15896512

約数列:

[1, 2, 4, 613, 1226, 2452, 8609, 17218, 34436, 5277317, 10554634, 21109268]

約数ペア:

[(1, 21109268), (2, 10554634), (4, 5277317), (613, 34436), (1226, 17218), (2452, 8609)]