21104578

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{2357}}^1$

素因数の和:2418

約数の個数: 24

約数和(自身を含む): 35751996

約数和(自身を除く): 14647418

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 2357, 4477, 4714, 8954, 25927, 51854, 87209, 174418, 285197, 570394, 959299, 1918598, 10552289, 21104578]

約数ペア:

[(1, 21104578), (2, 10552289), (11, 1918598), (22, 959299), (37, 570394), (74, 285197), (121, 174418), (242, 87209), (407, 51854), (814, 25927), (2357, 8954), (4477, 4714)]