17912620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81421}}^1$

素因数の和:81441

約数の個数: 24

約数和(自身を含む): 41036688

約数和(自身を除く): 23124068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81421, 162842, 325684, 407105, 814210, 895631, 1628420, 1791262, 3582524, 4478155, 8956310, 17912620]

約数ペア:

[(1, 17912620), (2, 8956310), (4, 4478155), (5, 3582524), (10, 1791262), (11, 1628420), (20, 895631), (22, 814210), (44, 407105), (55, 325684), (110, 162842), (220, 81421)]