21429705

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11807}}^1$

素因数の和:11837

約数の個数: 24

約数和(自身を含む): 37691136

約数和(自身を除く): 16261431

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 11807, 35421, 59035, 129877, 177105, 389631, 649385, 1428647, 1948155, 4285941, 7143235, 21429705]

約数ペア:

[(1, 21429705), (3, 7143235), (5, 4285941), (11, 1948155), (15, 1428647), (33, 649385), (55, 389631), (121, 177105), (165, 129877), (363, 59035), (605, 35421), (1815, 11807)]