21328569

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{19267}}^1$

素因数の和:19317

約数の個数: 16

約数和(自身を含む): 32370240

約数和(自身を除く): 11041671

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 19267, 57801, 173403, 520209, 789947, 2369841, 7109523, 21328569]

約数ペア:

[(1, 21328569), (3, 7109523), (9, 2369841), (27, 789947), (41, 520209), (123, 173403), (369, 57801), (1107, 19267)]