20783125881

素因数分解:

$3^6\times 7^1\times {\mathrm{83}}^1\times {\mathrm{49069}}^1$

素因数の和:49177

約数の個数: 56

約数和(自身を含む): 36041718720

約数和(自身を除く): 15258592839

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 83, 189, 243, 249, 567, 581, 729, 747, 1701, 1743, 2241, 5103, 5229, 6723, 15687, 20169, 47061, 49069, 60507, 141183, 147207, 343483, 423549, 441621, 1030449, 1324863, 3091347, 3974589, 4072727, 9274041, 11923767, 12218181, 27822123, 28509089, 35771301, 36654543, 83466369, 85527267, 109963629, 250399107, 256581801, 329890887, 769745403, 989672661, 2309236209, 2969017983, 6927708627, 20783125881]

約数ペア:

[(1, 20783125881), (3, 6927708627), (7, 2969017983), (9, 2309236209), (21, 989672661), (27, 769745403), (63, 329890887), (81, 256581801), (83, 250399107), (189, 109963629), (243, 85527267), (249, 83466369), (567, 36654543), (581, 35771301), (729, 28509089), (747, 27822123), (1701, 12218181), (1743, 11923767), (2241, 9274041), (5103, 4072727), (5229, 3974589), (6723, 3091347), (15687, 1324863), (20169, 1030449), (47061, 441621), (49069, 423549), (60507, 343483), (141183, 147207)]