20294631

素因数分解:

$3^6\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:163

約数の個数: 56

約数和(自身を含む): 35990304

約数和(自身を除く): 15695673

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 81, 97, 123, 189, 243, 287, 291, 369, 567, 679, 729, 861, 873, 1107, 1701, 2037, 2583, 2619, 3321, 3977, 5103, 6111, 7749, 7857, 9963, 11931, 18333, 23247, 23571, 27839, 29889, 35793, 54999, 69741, 70713, 83517, 107379, 164997, 209223, 250551, 322137, 494991, 751653, 966411, 2254959, 2899233, 6764877, 20294631]

約数ペア:

[(1, 20294631), (3, 6764877), (7, 2899233), (9, 2254959), (21, 966411), (27, 751653), (41, 494991), (63, 322137), (81, 250551), (97, 209223), (123, 164997), (189, 107379), (243, 83517), (287, 70713), (291, 69741), (369, 54999), (567, 35793), (679, 29889), (729, 27839), (861, 23571), (873, 23247), (1107, 18333), (1701, 11931), (2037, 9963), (2583, 7857), (2619, 7749), (3321, 6111), (3977, 5103)]