20387108

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31657}}^1$

素因数の和:31691

約数の個数: 24

約数和(自身を含む): 42548352

約数和(自身を除く): 22161244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31657, 63314, 126628, 221599, 443198, 728111, 886396, 1456222, 2912444, 5096777, 10193554, 20387108]

約数ペア:

[(1, 20387108), (2, 10193554), (4, 5096777), (7, 2912444), (14, 1456222), (23, 886396), (28, 728111), (46, 443198), (92, 221599), (161, 126628), (322, 63314), (644, 31657)]