19412393

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 27527808

約数和(自身を除く): 8115415

約数列:

[1, 7, 11, 13, 41, 43, 77, 91, 121, 143, 287, 301, 451, 473, 533, 559, 847, 1001, 1573, 1763, 3157, 3311, 3731, 3913, 4961, 5203, 5863, 6149, 11011, 12341, 19393, 22919, 34727, 36421, 41041, 43043, 64493, 67639, 135751, 160433, 213323, 252109, 451451, 473473, 1493261, 1764763, 2773199, 19412393]

約数ペア:

[(1, 19412393), (7, 2773199), (11, 1764763), (13, 1493261), (41, 473473), (43, 451451), (77, 252109), (91, 213323), (121, 160433), (143, 135751), (287, 67639), (301, 64493), (451, 43043), (473, 41041), (533, 36421), (559, 34727), (847, 22919), (1001, 19393), (1573, 12341), (1763, 11011), (3157, 6149), (3311, 5863), (3731, 5203), (3913, 4961)]