20138984

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{109451}}^1$

素因数の和:109480

約数の個数: 16

約数和(自身を含む): 39402720

約数和(自身を除く): 19263736

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 109451, 218902, 437804, 875608, 2517373, 5034746, 10069492, 20138984]

約数ペア:

[(1, 20138984), (2, 10069492), (4, 5034746), (8, 2517373), (23, 875608), (46, 437804), (92, 218902), (184, 109451)]