16657641

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 33074496

約数和(自身を除く): 16416855

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 43, 63, 77, 91, 99, 117, 129, 143, 231, 273, 301, 387, 429, 473, 559, 693, 819, 903, 1001, 1287, 1419, 1677, 1849, 2709, 3003, 3311, 3913, 4257, 5031, 5547, 6149, 9009, 9933, 11739, 12943, 16641, 18447, 20339, 24037, 29799, 35217, 38829, 43043, 55341, 61017, 72111, 116487, 129129, 142373, 168259, 183051, 216333, 264407, 387387, 427119, 504777, 793221, 1281357, 1514331, 1850849, 2379663, 5552547, 16657641]

約数ペア:

[(1, 16657641), (3, 5552547), (7, 2379663), (9, 1850849), (11, 1514331), (13, 1281357), (21, 793221), (33, 504777), (39, 427119), (43, 387387), (63, 264407), (77, 216333), (91, 183051), (99, 168259), (117, 142373), (129, 129129), (143, 116487), (231, 72111), (273, 61017), (301, 55341), (387, 43043), (429, 38829), (473, 35217), (559, 29799), (693, 24037), (819, 20339), (903, 18447), (1001, 16641), (1287, 12943), (1419, 11739), (1677, 9933), (1849, 9009), (2709, 6149), (3003, 5547), (3311, 5031), (3913, 4257)]