9959905

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 12474000

約数和(自身を除く): 2514095

約数列:

[1, 5, 29, 145, 149, 461, 745, 2305, 4321, 13369, 21605, 66845, 68689, 343445, 1991981, 9959905]

約数ペア:

[(1, 9959905), (5, 1991981), (29, 343445), (145, 68689), (149, 66845), (461, 21605), (745, 13369), (2305, 4321)]