16680411

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 27605424

約数和(自身を除く): 10925013

約数列:

[1, 3, 9, 11, 27, 33, 81, 97, 99, 193, 291, 297, 579, 873, 891, 1067, 1737, 2123, 2619, 3201, 5211, 6369, 7857, 9603, 15633, 18721, 19107, 28809, 56163, 57321, 86427, 168489, 171963, 205931, 505467, 617793, 1516401, 1853379, 5560137, 16680411]

約数ペア:

[(1, 16680411), (3, 5560137), (9, 1853379), (11, 1516401), (27, 617793), (33, 505467), (81, 205931), (97, 171963), (99, 168489), (193, 86427), (291, 57321), (297, 56163), (579, 28809), (873, 19107), (891, 18721), (1067, 15633), (1737, 9603), (2123, 7857), (2619, 6369), (3201, 5211)]