858942855

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{137321}}^1$

素因数の和:137471

約数の個数: 24

約数和(自身を含む): 1499556240

約数和(自身を除く): 640613385

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 137321, 411963, 686605, 1235889, 2059815, 6179445, 19087619, 57262857, 95438095, 171788571, 286314285, 858942855]

約数ペア:

[(1, 858942855), (3, 286314285), (5, 171788571), (9, 95438095), (15, 57262857), (45, 19087619), (139, 6179445), (417, 2059815), (695, 1235889), (1251, 686605), (2085, 411963), (6255, 137321)]