21295461

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 32306688

約数和(自身を除く): 11011227

約数列:

[1, 3, 11, 33, 37, 107, 111, 163, 321, 407, 489, 1177, 1221, 1793, 3531, 3959, 5379, 6031, 11877, 17441, 18093, 43549, 52323, 66341, 130647, 191851, 199023, 575553, 645317, 1935951, 7098487, 21295461]

約数ペア:

[(1, 21295461), (3, 7098487), (11, 1935951), (33, 645317), (37, 575553), (107, 199023), (111, 191851), (163, 130647), (321, 66341), (407, 52323), (489, 43549), (1177, 18093), (1221, 17441), (1793, 11877), (3531, 6031), (3959, 5379)]