20512695609

素因数分解:

$3^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{378163}}^1$

素因数の和:378227

約数の個数: 48

約数和(自身を含む): 36212984640

約数和(自身を除く): 15700289031

約数列:

[1, 3, 7, 9, 21, 27, 41, 49, 63, 123, 147, 189, 287, 369, 441, 861, 1107, 1323, 2009, 2583, 6027, 7749, 18081, 54243, 378163, 1134489, 2647141, 3403467, 7941423, 10210401, 15504683, 18529987, 23824269, 46514049, 55589961, 71472807, 108532781, 139542147, 166769883, 325598343, 418626441, 500309649, 759729467, 976795029, 2279188401, 2930385087, 6837565203, 20512695609]

約数ペア:

[(1, 20512695609), (3, 6837565203), (7, 2930385087), (9, 2279188401), (21, 976795029), (27, 759729467), (41, 500309649), (49, 418626441), (63, 325598343), (123, 166769883), (147, 139542147), (189, 108532781), (287, 71472807), (369, 55589961), (441, 46514049), (861, 23824269), (1107, 18529987), (1323, 15504683), (2009, 10210401), (2583, 7941423), (6027, 3403467), (7749, 2647141), (18081, 1134489), (54243, 378163)]