16217905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1979}}^1$

素因数の和:2144

約数の個数: 16

約数和(自身を含む): 21384000

約数和(自身を除く): 5166095

約数列:

[1, 5, 11, 55, 149, 745, 1639, 1979, 8195, 9895, 21769, 108845, 294871, 1474355, 3243581, 16217905]

約数ペア:

[(1, 16217905), (5, 3243581), (11, 1474355), (55, 294871), (149, 108845), (745, 21769), (1639, 9895), (1979, 8195)]