9978556

素因数分解:

$2^2\times 7^4\times {\mathrm{1039}}^1$

素因数の和:1071

約数の個数: 30

約数和(自身を含む): 20391280

約数和(自身を除く): 10412724

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1039, 1372, 2078, 2401, 4156, 4802, 7273, 9604, 14546, 29092, 50911, 101822, 203644, 356377, 712754, 1425508, 2494639, 4989278, 9978556]

約数ペア:

[(1, 9978556), (2, 4989278), (4, 2494639), (7, 1425508), (14, 712754), (28, 356377), (49, 203644), (98, 101822), (196, 50911), (343, 29092), (686, 14546), (1039, 9604), (1372, 7273), (2078, 4802), (2401, 4156)]