2215755

素因数分解:

$3^4\times 5^1\times {\mathrm{5471}}^1$

素因数の和:5488

約数の個数: 20

約数和(自身を含む): 3972672

約数和(自身を除く): 1756917

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5471, 16413, 27355, 49239, 82065, 147717, 246195, 443151, 738585, 2215755]

約数ペア:

[(1, 2215755), (3, 738585), (5, 443151), (9, 246195), (15, 147717), (27, 82065), (45, 49239), (81, 27355), (135, 16413), (405, 5471)]