20815011

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11393}}^1$

素因数の和:11435

約数の個数: 24

約数和(自身を含む): 35549280

約数和(自身を除く): 14734269

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11393, 34179, 79751, 102537, 239253, 330397, 717759, 991191, 2312779, 2973573, 6938337, 20815011]

約数ペア:

[(1, 20815011), (3, 6938337), (7, 2973573), (9, 2312779), (21, 991191), (29, 717759), (63, 330397), (87, 239253), (203, 102537), (261, 79751), (609, 34179), (1827, 11393)]