9987215

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4019}}^1$

素因数の和:4102

約数の個数: 16

約数和(自身を含む): 13893120

約数和(自身を除く): 3905905

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 4019, 20095, 28133, 140665, 285349, 1426745, 1997443, 9987215]

約数ペア:

[(1, 9987215), (5, 1997443), (7, 1426745), (35, 285349), (71, 140665), (355, 28133), (497, 20095), (2485, 4019)]