21586660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56807}}^1$

素因数の和:56835

約数の個数: 24

約数和(自身を含む): 47718720

約数和(自身を除く): 26132060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56807, 113614, 227228, 284035, 568070, 1079333, 1136140, 2158666, 4317332, 5396665, 10793330, 21586660]

約数ペア:

[(1, 21586660), (2, 10793330), (4, 5396665), (5, 4317332), (10, 2158666), (19, 1136140), (20, 1079333), (38, 568070), (76, 284035), (95, 227228), (190, 113614), (380, 56807)]