20357169

素因数分解:

$3^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1471}}^1$

素因数の和:2140

約数の個数: 16

約数和(自身を含む): 31088640

約数和(自身を除く): 10731471

約数列:

[1, 3, 7, 21, 659, 1471, 1977, 4413, 4613, 10297, 13839, 30891, 969389, 2908167, 6785723, 20357169]

約数ペア:

[(1, 20357169), (3, 6785723), (7, 2908167), (21, 969389), (659, 30891), (1471, 13839), (1977, 10297), (4413, 4613)]