21618949

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 25232760

約数和(自身を除く): 3613811

約数列:

[1, 11, 29, 61, 101, 121, 319, 671, 1111, 1769, 2929, 3509, 6161, 7381, 12221, 19459, 32219, 67771, 178669, 214049, 354409, 745481, 1965359, 21618949]

約数ペア:

[(1, 21618949), (11, 1965359), (29, 745481), (61, 354409), (101, 214049), (121, 178669), (319, 67771), (671, 32219), (1111, 19459), (1769, 12221), (2929, 7381), (3509, 6161)]