20156715

素因数分解:

$3^3\times 5^1\times {\mathrm{149309}}^1$

素因数の和:149323

約数の個数: 16

約数和(自身を含む): 35834400

約数和(自身を除く): 15677685

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149309, 447927, 746545, 1343781, 2239635, 4031343, 6718905, 20156715]

約数ペア:

[(1, 20156715), (3, 6718905), (5, 4031343), (9, 2239635), (15, 1343781), (27, 746545), (45, 447927), (135, 149309)]