20557010

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47807}}^1$

素因数の和:47857

約数の個数: 16

約数和(自身を含む): 37863936

約数和(自身を除く): 17306926

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47807, 95614, 239035, 478070, 2055701, 4111402, 10278505, 20557010]

約数ペア:

[(1, 20557010), (2, 10278505), (5, 4111402), (10, 2055701), (43, 478070), (86, 239035), (215, 95614), (430, 47807)]