21000565443

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2879551}}^1$

素因数の和:2879595

約数の個数: 32

約数和(自身を含む): 34831060992

約数和(自身を除く): 13830495549

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 7293, 2879551, 8638653, 31675061, 37434163, 48952367, 95025183, 112302489, 146857101, 411775793, 538476037, 636380771, 1235327379, 1615428111, 1909142313, 7000188481, 21000565443]

約数ペア:

[(1, 21000565443), (3, 7000188481), (11, 1909142313), (13, 1615428111), (17, 1235327379), (33, 636380771), (39, 538476037), (51, 411775793), (143, 146857101), (187, 112302489), (221, 95025183), (429, 48952367), (561, 37434163), (663, 31675061), (2431, 8638653), (7293, 2879551)]