20391033

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1087}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 30263808

約数和(自身を除く): 9872775

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1087, 1443, 3261, 6253, 14131, 18759, 40219, 42393, 120657, 183703, 522847, 551109, 1568541, 6797011, 20391033]

約数ペア:

[(1, 20391033), (3, 6797011), (13, 1568541), (37, 551109), (39, 522847), (111, 183703), (169, 120657), (481, 42393), (507, 40219), (1087, 18759), (1443, 14131), (3261, 6253)]