18221379

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{12841}}^1$

素因数の和:12898

約数の個数: 16

約数和(自身を含む): 27122304

約数和(自身を除く): 8900925

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 12841, 38523, 141251, 423753, 552163, 1656489, 6073793, 18221379]

約数ペア:

[(1, 18221379), (3, 6073793), (11, 1656489), (33, 552163), (43, 423753), (129, 141251), (473, 38523), (1419, 12841)]