20886579

素因数分解:

$3^6\times 7^1\times {\mathrm{4093}}^1$

素因数の和:4118

約数の個数: 28

約数和(自身を含む): 35797936

約数和(自身を除く): 14911357

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4093, 5103, 12279, 28651, 36837, 85953, 110511, 257859, 331533, 773577, 994599, 2320731, 2983797, 6962193, 20886579]

約数ペア:

[(1, 20886579), (3, 6962193), (7, 2983797), (9, 2320731), (21, 994599), (27, 773577), (63, 331533), (81, 257859), (189, 110511), (243, 85953), (567, 36837), (729, 28651), (1701, 12279), (4093, 5103)]