28639897

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 7486823

約数列:

[1, 11, 13, 19, 83, 127, 143, 209, 247, 913, 1079, 1397, 1577, 1651, 2413, 2717, 10541, 11869, 17347, 18161, 20501, 26543, 31369, 115951, 137033, 200279, 225511, 345059, 1507363, 2203069, 2603627, 28639897]

約数ペア:

[(1, 28639897), (11, 2603627), (13, 2203069), (19, 1507363), (83, 345059), (127, 225511), (143, 200279), (209, 137033), (247, 115951), (913, 31369), (1079, 26543), (1397, 20501), (1577, 18161), (1651, 17347), (2413, 11869), (2717, 10541)]