18322940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53891}}^1$

素因数の和:53917

約数の個数: 24

約数和(自身を含む): 40742352

約数和(自身を除く): 22419412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53891, 107782, 215564, 269455, 538910, 916147, 1077820, 1832294, 3664588, 4580735, 9161470, 18322940]

約数ペア:

[(1, 18322940), (2, 9161470), (4, 4580735), (5, 3664588), (10, 1832294), (17, 1077820), (20, 916147), (34, 538910), (68, 269455), (85, 215564), (170, 107782), (340, 53891)]