20080467

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 33825792

約数和(自身を除く): 13745325

約数列:

[1, 3, 9, 11, 27, 31, 33, 81, 93, 99, 279, 297, 341, 727, 837, 891, 1023, 2181, 2511, 3069, 6543, 7997, 9207, 19629, 22537, 23991, 27621, 58887, 67611, 71973, 202833, 215919, 247907, 608499, 647757, 743721, 1825497, 2231163, 6693489, 20080467]

約数ペア:

[(1, 20080467), (3, 6693489), (9, 2231163), (11, 1825497), (27, 743721), (31, 647757), (33, 608499), (81, 247907), (93, 215919), (99, 202833), (279, 71973), (297, 67611), (341, 58887), (727, 27621), (837, 23991), (891, 22537), (1023, 19629), (2181, 9207), (2511, 7997), (3069, 6543)]