21219027

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{1181}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 29105568

約数和(自身を除く): 7886541

約数列:

[1, 3, 53, 113, 159, 339, 1181, 3543, 5989, 17967, 62593, 133453, 187779, 400359, 7073009, 21219027]

約数ペア:

[(1, 21219027), (3, 7073009), (53, 400359), (113, 187779), (159, 133453), (339, 62593), (1181, 17967), (3543, 5989)]