21894089

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 25608960

約数和(自身を除く): 3714871

約数列:

[1, 7, 89, 113, 311, 623, 791, 2177, 10057, 27679, 35143, 70399, 193753, 246001, 3127727, 21894089]

約数ペア:

[(1, 21894089), (7, 3127727), (89, 246001), (113, 193753), (311, 70399), (623, 35143), (791, 27679), (2177, 10057)]