20578617

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{1063}}^1$

素因数の和:1314

約数の個数: 20

約数和(自身を含む): 30898560

約数和(自身を除く): 10319943

約数列:

[1, 3, 9, 27, 81, 239, 717, 1063, 2151, 3189, 6453, 9567, 19359, 28701, 86103, 254057, 762171, 2286513, 6859539, 20578617]

約数ペア:

[(1, 20578617), (3, 6859539), (9, 2286513), (27, 762171), (81, 254057), (239, 86103), (717, 28701), (1063, 19359), (2151, 9567), (3189, 6453)]