18995218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{21059}}^1$

素因数の和:21113

約数の個数: 16

約数和(自身を含む): 31842720

約数和(自身を除く): 12847502

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 21059, 42118, 231649, 463298, 863419, 1726838, 9497609, 18995218]

約数ペア:

[(1, 18995218), (2, 9497609), (11, 1726838), (22, 863419), (41, 463298), (82, 231649), (451, 42118), (902, 21059)]