208611207

素因数分解:

$3^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3793}}^1$

素因数の和:3909

約数の個数: 40

約数和(自身を含む): 359914016

約数和(自身を除く): 151302809

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 97, 189, 291, 567, 679, 873, 2037, 2619, 3793, 6111, 7857, 11379, 18333, 26551, 34137, 54999, 79653, 102411, 238959, 307233, 367921, 716877, 1103763, 2150631, 2575447, 3311289, 7726341, 9933867, 23179023, 29801601, 69537069, 208611207]

約数ペア:

[(1, 208611207), (3, 69537069), (7, 29801601), (9, 23179023), (21, 9933867), (27, 7726341), (63, 3311289), (81, 2575447), (97, 2150631), (189, 1103763), (291, 716877), (567, 367921), (679, 307233), (873, 238959), (2037, 102411), (2619, 79653), (3793, 54999), (6111, 34137), (7857, 26551), (11379, 18333)]