19779507

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:512

約数の個数: 36

約数和(自身を含む): 32242392

約数和(自身を除く): 12462885

約数列:

[1, 3, 9, 11, 33, 41, 99, 121, 123, 363, 369, 443, 451, 1089, 1329, 1353, 3987, 4059, 4873, 4961, 14619, 14883, 18163, 43857, 44649, 53603, 54489, 160809, 163467, 199793, 482427, 599379, 1798137, 2197723, 6593169, 19779507]

約数ペア:

[(1, 19779507), (3, 6593169), (9, 2197723), (11, 1798137), (33, 599379), (41, 482427), (99, 199793), (121, 163467), (123, 160809), (363, 54489), (369, 53603), (443, 44649), (451, 43857), (1089, 18163), (1329, 14883), (1353, 14619), (3987, 4961), (4059, 4873)]