20005941249

素因数分解:

$3^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{363751}}^1$

素因数の和:363867

約数の個数: 40

約数和(自身を含む): 34506969728

約数和(自身を除く): 14501028479

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 97, 189, 291, 567, 679, 873, 2037, 2619, 6111, 7857, 18333, 54999, 363751, 1091253, 2546257, 3273759, 7638771, 9821277, 22916313, 29463831, 35283847, 68748939, 105851541, 206246817, 246986929, 317554623, 740960787, 952663869, 2222882361, 2857991607, 6668647083, 20005941249]

約数ペア:

[(1, 20005941249), (3, 6668647083), (7, 2857991607), (9, 2222882361), (21, 952663869), (27, 740960787), (63, 317554623), (81, 246986929), (97, 206246817), (189, 105851541), (291, 68748939), (567, 35283847), (679, 29463831), (873, 22916313), (2037, 9821277), (2619, 7638771), (6111, 3273759), (7857, 2546257), (18333, 1091253), (54999, 363751)]