20539156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2579}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 39443040

約数和(自身を除く): 18903884

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2579, 3982, 5158, 7964, 10316, 28369, 56738, 113476, 466799, 933598, 1867196, 5134789, 10269578, 20539156]

約数ペア:

[(1, 20539156), (2, 10269578), (4, 5134789), (11, 1867196), (22, 933598), (44, 466799), (181, 113476), (362, 56738), (724, 28369), (1991, 10316), (2579, 7964), (3982, 5158)]