18573709

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2213}}^1$

素因数の和:2340

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 4806131

約数列:

[1, 7, 11, 77, 109, 763, 1199, 2213, 8393, 15491, 24343, 170401, 241217, 1688519, 2653387, 18573709]

約数ペア:

[(1, 18573709), (7, 2653387), (11, 1688519), (77, 241217), (109, 170401), (763, 24343), (1199, 15491), (2213, 8393)]