20215569

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3541}}^1$

素因数の和:3728

約数の個数: 16

約数和(自身を含む): 29582784

約数和(自身を除く): 9367215

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3541, 5709, 10623, 38951, 116853, 612593, 1837779, 6738523, 20215569]

約数ペア:

[(1, 20215569), (3, 6738523), (11, 1837779), (33, 612593), (173, 116853), (519, 38951), (1903, 10623), (3541, 5709)]