213571645

素因数分解:

$5^1\times 7^2\times {\mathrm{839}}^1\times {\mathrm{1039}}^1$

素因数の和:1897

約数の個数: 24

約数和(自身を含む): 298771200

約数和(自身を除く): 85199555

約数列:

[1, 5, 7, 35, 49, 245, 839, 1039, 4195, 5195, 5873, 7273, 29365, 36365, 41111, 50911, 205555, 254555, 871721, 4358605, 6102047, 30510235, 42714329, 213571645]

約数ペア:

[(1, 213571645), (5, 42714329), (7, 30510235), (35, 6102047), (49, 4358605), (245, 871721), (839, 254555), (1039, 205555), (4195, 50911), (5195, 41111), (5873, 36365), (7273, 29365)]