27988311

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 42819840

約数和(自身を除く): 14831529

約数列:

[1, 3, 13, 19, 39, 57, 107, 247, 321, 353, 741, 1059, 1391, 2033, 4173, 4589, 6099, 6707, 13767, 20121, 26429, 37771, 79287, 87191, 113313, 261573, 491023, 717649, 1473069, 2152947, 9329437, 27988311]

約数ペア:

[(1, 27988311), (3, 9329437), (13, 2152947), (19, 1473069), (39, 717649), (57, 491023), (107, 261573), (247, 113313), (321, 87191), (353, 79287), (741, 37771), (1059, 26429), (1391, 20121), (2033, 13767), (4173, 6707), (4589, 6099)]