20896335

素因数分解:

$3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1103}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 36339264

約数和(自身を除く): 15442929

約数列:

[1, 3, 5, 9, 15, 45, 421, 1103, 1263, 2105, 3309, 3789, 5515, 6315, 9927, 16545, 18945, 49635, 464363, 1393089, 2321815, 4179267, 6965445, 20896335]

約数ペア:

[(1, 20896335), (3, 6965445), (5, 4179267), (9, 2321815), (15, 1393089), (45, 464363), (421, 49635), (1103, 18945), (1263, 16545), (2105, 9927), (3309, 6315), (3789, 5515)]