21162812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{2687}}^1$

素因数の和:2881

約数の個数: 24

約数和(自身を含む): 40642560

約数和(自身を除く): 19479748

約数列:

[1, 2, 4, 11, 22, 44, 179, 358, 716, 1969, 2687, 3938, 5374, 7876, 10748, 29557, 59114, 118228, 480973, 961946, 1923892, 5290703, 10581406, 21162812]

約数ペア:

[(1, 21162812), (2, 10581406), (4, 5290703), (11, 1923892), (22, 961946), (44, 480973), (179, 118228), (358, 59114), (716, 29557), (1969, 10748), (2687, 7876), (3938, 5374)]