12758291

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 16988160

約数和(自身を除く): 4229869

約数列:

[1, 7, 13, 19, 47, 91, 133, 157, 247, 329, 611, 893, 1099, 1729, 2041, 2983, 4277, 6251, 7379, 11609, 14287, 20881, 38779, 51653, 81263, 95927, 140201, 271453, 671489, 981407, 1822613, 12758291]

約数ペア:

[(1, 12758291), (7, 1822613), (13, 981407), (19, 671489), (47, 271453), (91, 140201), (133, 95927), (157, 81263), (247, 51653), (329, 38779), (611, 20881), (893, 14287), (1099, 11609), (1729, 7379), (2041, 6251), (2983, 4277)]