21802455

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15629}}^1$

素因数の和:15671

約数の個数: 24

約数和(自身を含む): 39012480

約数和(自身を除く): 17210025

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15629, 46887, 78145, 140661, 234435, 484499, 703305, 1453497, 2422495, 4360491, 7267485, 21802455]

約数ペア:

[(1, 21802455), (3, 7267485), (5, 4360491), (9, 2422495), (15, 1453497), (31, 703305), (45, 484499), (93, 234435), (155, 140661), (279, 78145), (465, 46887), (1395, 15629)]