18210985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{9661}}^1$

素因数の和:9708

約数の個数: 16

約数和(自身を含む): 24348240

約数和(自身を除く): 6137255

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 9661, 48305, 125593, 280169, 627965, 1400845, 3642197, 18210985]

約数ペア:

[(1, 18210985), (5, 3642197), (13, 1400845), (29, 627965), (65, 280169), (145, 125593), (377, 48305), (1885, 9661)]