20712579

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{3943}}^1$

素因数の和:4066

約数の個数: 16

約数和(自身を含む): 29532672

約数和(自身を除く): 8820093

約数列:

[1, 3, 17, 51, 103, 309, 1751, 3943, 5253, 11829, 67031, 201093, 406129, 1218387, 6904193, 20712579]

約数ペア:

[(1, 20712579), (3, 6904193), (17, 1218387), (51, 406129), (103, 201093), (309, 67031), (1751, 11829), (3943, 5253)]