21936957

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1889}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 34473600

約数和(自身を除く): 12536643

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 1889, 3871, 5667, 11613, 13223, 39669, 92561, 149231, 277683, 447693, 1044617, 3133851, 7312319, 21936957]

約数ペア:

[(1, 21936957), (3, 7312319), (7, 3133851), (21, 1044617), (49, 447693), (79, 277683), (147, 149231), (237, 92561), (553, 39669), (1659, 13223), (1889, 11613), (3871, 5667)]