20407455

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14629}}^1$

素因数の和:14671

約数の個数: 24

約数和(自身を含む): 36516480

約数和(自身を除く): 16109025

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14629, 43887, 73145, 131661, 219435, 453499, 658305, 1360497, 2267495, 4081491, 6802485, 20407455]

約数ペア:

[(1, 20407455), (3, 6802485), (5, 4081491), (9, 2267495), (15, 1360497), (31, 658305), (45, 453499), (93, 219435), (155, 131661), (279, 73145), (465, 43887), (1395, 14629)]