20054727

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 37010688

約数和(自身を除く): 16955961

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 301, 387, 473, 673, 693, 903, 1419, 2019, 2709, 3311, 4257, 4711, 6057, 7403, 9933, 14133, 22209, 28939, 29799, 42399, 51821, 66627, 86817, 155463, 202573, 260451, 318329, 466389, 607719, 954987, 1823157, 2228303, 2864961, 6684909, 20054727]

約数ペア:

[(1, 20054727), (3, 6684909), (7, 2864961), (9, 2228303), (11, 1823157), (21, 954987), (33, 607719), (43, 466389), (63, 318329), (77, 260451), (99, 202573), (129, 155463), (231, 86817), (301, 66627), (387, 51821), (473, 42399), (673, 29799), (693, 28939), (903, 22209), (1419, 14133), (2019, 9933), (2709, 7403), (3311, 6057), (4257, 4711)]