212765905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{881}}^1\times {\mathrm{4391}}^1$

素因数の和:5288

約数の個数: 16

約数和(自身を含む): 278909568

約数和(自身を除く): 66143663

約数列:

[1, 5, 11, 55, 881, 4391, 4405, 9691, 21955, 48301, 48455, 241505, 3868471, 19342355, 42553181, 212765905]

約数ペア:

[(1, 212765905), (5, 42553181), (11, 19342355), (55, 3868471), (881, 241505), (4391, 48455), (4405, 48301), (9691, 21955)]