20561403

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1453}}^1$

素因数の和:1598

約数の個数: 16

約数和(自身を含む): 28265760

約数和(自身を除く): 7704357

約数列:

[1, 3, 53, 89, 159, 267, 1453, 4359, 4717, 14151, 77009, 129317, 231027, 387951, 6853801, 20561403]

約数ペア:

[(1, 20561403), (3, 6853801), (53, 387951), (89, 231027), (159, 129317), (267, 77009), (1453, 14151), (4359, 4717)]