21091188

素因数分解:

$2^2\times 3^1\times {\mathrm{661}}^1\times {\mathrm{2659}}^1$

素因数の和:3327

約数の個数: 24

約数和(自身を含む): 49305760

約数和(自身を除く): 28214572

約数列:

[1, 2, 3, 4, 6, 12, 661, 1322, 1983, 2644, 2659, 3966, 5318, 7932, 7977, 10636, 15954, 31908, 1757599, 3515198, 5272797, 7030396, 10545594, 21091188]

約数ペア:

[(1, 21091188), (2, 10545594), (3, 7030396), (4, 5272797), (6, 3515198), (12, 1757599), (661, 31908), (1322, 15954), (1983, 10636), (2644, 7977), (2659, 7932), (3966, 5318)]