20017767

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 33523200

約数和(自身を除く): 13505433

約数列:

[1, 3, 7, 11, 21, 33, 77, 193, 231, 449, 579, 1347, 1351, 2123, 3143, 4053, 4939, 6369, 9429, 14817, 14861, 34573, 44583, 86657, 103719, 259971, 606599, 953227, 1819797, 2859681, 6672589, 20017767]

約数ペア:

[(1, 20017767), (3, 6672589), (7, 2859681), (11, 1819797), (21, 953227), (33, 606599), (77, 259971), (193, 103719), (231, 86657), (449, 44583), (579, 34573), (1347, 14861), (1351, 14817), (2123, 9429), (3143, 6369), (4053, 4939)]