18918535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{9677}}^1$

素因数の和:9722

約数の個数: 16

約数和(自身を含む): 25085376

約数和(自身を除く): 6166841

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 9677, 48385, 164509, 222571, 822545, 1112855, 3783707, 18918535]

約数ペア:

[(1, 18918535), (5, 3783707), (17, 1112855), (23, 822545), (85, 222571), (115, 164509), (391, 48385), (1955, 9677)]