21707609

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1867}}^1$

素因数の和:2036

約数の個数: 16

約数和(自身を含む): 27257856

約数和(自身を除く): 5550247

約数列:

[1, 7, 11, 77, 151, 1057, 1661, 1867, 11627, 13069, 20537, 143759, 281917, 1973419, 3101087, 21707609]

約数ペア:

[(1, 21707609), (7, 3101087), (11, 1973419), (77, 281917), (151, 143759), (1057, 20537), (1661, 13069), (1867, 11627)]