20156884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2531}}^1$

素因数の和:2727

約数の個数: 24

約数和(自身を含む): 38709216

約数和(自身を除く): 18552332

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2531, 3982, 5062, 7964, 10124, 27841, 55682, 111364, 458111, 916222, 1832444, 5039221, 10078442, 20156884]

約数ペア:

[(1, 20156884), (2, 10078442), (4, 5039221), (11, 1832444), (22, 916222), (44, 458111), (181, 111364), (362, 55682), (724, 27841), (1991, 10124), (2531, 7964), (3982, 5062)]