20938850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9739}}^1$

素因数の和:9794

約数の個数: 24

約数和(自身を含む): 39856080

約数和(自身を除く): 18917230

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9739, 19478, 48695, 97390, 243475, 418777, 486950, 837554, 2093885, 4187770, 10469425, 20938850]

約数ペア:

[(1, 20938850), (2, 10469425), (5, 4187770), (10, 2093885), (25, 837554), (43, 486950), (50, 418777), (86, 243475), (215, 97390), (430, 48695), (1075, 19478), (2150, 9739)]