291218121

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{19249}}^1$

素因数の和:19337

約数の個数: 18

約数和(自身を含む): 431180750

約数和(自身を除く): 139962629

約数列:

[1, 3, 9, 41, 123, 369, 1681, 5043, 15129, 19249, 57747, 173241, 789209, 2367627, 7102881, 32357569, 97072707, 291218121]

約数ペア:

[(1, 291218121), (3, 97072707), (9, 32357569), (41, 7102881), (123, 2367627), (369, 789209), (1681, 173241), (5043, 57747), (15129, 19249)]