18940816

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2411}}^1$

素因数の和:2910

約数の個数: 20

約数和(自身を含む): 36787824

約数和(自身を除く): 17847008

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2411, 3928, 4822, 7856, 9644, 19288, 38576, 1183801, 2367602, 4735204, 9470408, 18940816]

約数ペア:

[(1, 18940816), (2, 9470408), (4, 4735204), (8, 2367602), (16, 1183801), (491, 38576), (982, 19288), (1964, 9644), (2411, 7856), (3928, 4822)]