20740588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11497}}^1$

素因数の和:11553

約数の個数: 24

約数和(自身を含む): 40564944

約数和(自身を除く): 19824356

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11497, 22994, 45988, 126467, 252934, 471377, 505868, 942754, 1885508, 5185147, 10370294, 20740588]

約数ペア:

[(1, 20740588), (2, 10370294), (4, 5185147), (11, 1885508), (22, 942754), (41, 505868), (44, 471377), (82, 252934), (164, 126467), (451, 45988), (902, 22994), (1804, 11497)]