205679979

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 314851680

約数和(自身を除く): 109171701

約数列:

[1, 3, 9, 27, 81, 89, 103, 267, 277, 309, 801, 831, 927, 2403, 2493, 2781, 7209, 7479, 8343, 9167, 22437, 24653, 27501, 28531, 73959, 82503, 85593, 221877, 247509, 256779, 665631, 742527, 770337, 1996893, 2311011, 2539259, 7617777, 22853331, 68559993, 205679979]

約数ペア:

[(1, 205679979), (3, 68559993), (9, 22853331), (27, 7617777), (81, 2539259), (89, 2311011), (103, 1996893), (267, 770337), (277, 742527), (309, 665631), (801, 256779), (831, 247509), (927, 221877), (2403, 85593), (2493, 82503), (2781, 73959), (7209, 28531), (7479, 27501), (8343, 24653), (9167, 22437)]