20003121

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{359}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 9873999

約数列:

[1, 3, 9, 41, 123, 151, 359, 369, 453, 1077, 1359, 3231, 6191, 14719, 18573, 44157, 54209, 55719, 132471, 162627, 487881, 2222569, 6667707, 20003121]

約数ペア:

[(1, 20003121), (3, 6667707), (9, 2222569), (41, 487881), (123, 162627), (151, 132471), (359, 55719), (369, 54209), (453, 44157), (1077, 18573), (1359, 14719), (3231, 6191)]