20537804

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31891}}^1$

素因数の和:31925

約数の個数: 24

約数和(自身を含む): 42862848

約数和(自身を除く): 22325044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31891, 63782, 127564, 223237, 446474, 733493, 892948, 1466986, 2933972, 5134451, 10268902, 20537804]

約数ペア:

[(1, 20537804), (2, 10268902), (4, 5134451), (7, 2933972), (14, 1466986), (23, 892948), (28, 733493), (46, 446474), (92, 223237), (161, 127564), (322, 63782), (644, 31891)]