21121110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{709}}^1$

素因数の和:1053

約数の個数: 48

約数和(自身を含む): 55158480

約数和(自身を除く): 34037370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 331, 662, 709, 993, 1418, 1655, 1986, 2127, 2979, 3310, 3545, 4254, 4965, 5958, 6381, 7090, 9930, 10635, 12762, 14895, 21270, 29790, 31905, 63810, 234679, 469358, 704037, 1173395, 1408074, 2112111, 2346790, 3520185, 4224222, 7040370, 10560555, 21121110]

約数ペア:

[(1, 21121110), (2, 10560555), (3, 7040370), (5, 4224222), (6, 3520185), (9, 2346790), (10, 2112111), (15, 1408074), (18, 1173395), (30, 704037), (45, 469358), (90, 234679), (331, 63810), (662, 31905), (709, 29790), (993, 21270), (1418, 14895), (1655, 12762), (1986, 10635), (2127, 9930), (2979, 7090), (3310, 6381), (3545, 5958), (4254, 4965)]