20816059905

素因数分解:

$3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1646189}}^1$

素因数の和:1646481

約数の個数: 24

約数和(自身を含む): 36209595240

約数和(自身を除く): 15393535335

約数列:

[1, 3, 5, 9, 15, 45, 281, 843, 1405, 2529, 4215, 12645, 1646189, 4938567, 8230945, 14815701, 24692835, 74078505, 462579109, 1387737327, 2312895545, 4163211981, 6938686635, 20816059905]

約数ペア:

[(1, 20816059905), (3, 6938686635), (5, 4163211981), (9, 2312895545), (15, 1387737327), (45, 462579109), (281, 74078505), (843, 24692835), (1405, 14815701), (2529, 8230945), (4215, 4938567), (12645, 1646189)]