20691435

素因数分解:

$3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{4909}}^1$

素因数の和:5198

約数の個数: 16

約数和(自身を含む): 33230880

約数和(自身を除く): 12539445

約数列:

[1, 3, 5, 15, 281, 843, 1405, 4215, 4909, 14727, 24545, 73635, 1379429, 4138287, 6897145, 20691435]

約数ペア:

[(1, 20691435), (3, 6897145), (5, 4138287), (15, 1379429), (281, 73635), (843, 24545), (1405, 14727), (4215, 4909)]