21652911

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11087}}^1$

素因数の和:11131

約数の個数: 24

約数和(自身を含む): 36900864

約数和(自身を除く): 15247953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 11087, 33261, 77609, 99783, 232827, 343697, 698481, 1031091, 2405879, 3093273, 7217637, 21652911]

約数ペア:

[(1, 21652911), (3, 7217637), (7, 3093273), (9, 2405879), (21, 1031091), (31, 698481), (63, 343697), (93, 232827), (217, 99783), (279, 77609), (651, 33261), (1953, 11087)]