18690716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1009}}^1$

素因数の和:1445

約数の個数: 24

約数和(自身を含む): 35802480

約数和(自身を除く): 17111764

約数列:

[1, 2, 4, 11, 22, 44, 421, 842, 1009, 1684, 2018, 4036, 4631, 9262, 11099, 18524, 22198, 44396, 424789, 849578, 1699156, 4672679, 9345358, 18690716]

約数ペア:

[(1, 18690716), (2, 9345358), (4, 4672679), (11, 1699156), (22, 849578), (44, 424789), (421, 44396), (842, 22198), (1009, 18524), (1684, 11099), (2018, 9262), (4036, 4631)]