20423709

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{911}}^1$

素因数の和:1017

約数の個数: 24

約数和(自身を含む): 30730752

約数和(自身を除く): 10307043

約数列:

[1, 3, 9, 47, 53, 141, 159, 423, 477, 911, 2491, 2733, 7473, 8199, 22419, 42817, 48283, 128451, 144849, 385353, 434547, 2269301, 6807903, 20423709]

約数ペア:

[(1, 20423709), (3, 6807903), (9, 2269301), (47, 434547), (53, 385353), (141, 144849), (159, 128451), (423, 48283), (477, 42817), (911, 22419), (2491, 8199), (2733, 7473)]