21074265

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15107}}^1$

素因数の和:15149

約数の個数: 24

約数和(自身を含む): 37709568

約数和(自身を除く): 16635303

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15107, 45321, 75535, 135963, 226605, 468317, 679815, 1404951, 2341585, 4214853, 7024755, 21074265]

約数ペア:

[(1, 21074265), (3, 7024755), (5, 4214853), (9, 2341585), (15, 1404951), (31, 679815), (45, 468317), (93, 226605), (155, 135963), (279, 75535), (465, 45321), (1395, 15107)]