205740243

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{17047}}^1$

素因数の和:17208

約数の個数: 20

約数和(自身を含む): 309421200

約数和(自身を除く): 103680957

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 4023, 12069, 17047, 51141, 153423, 460269, 1380807, 2540003, 7620009, 22860027, 68580081, 205740243]

約数ペア:

[(1, 205740243), (3, 68580081), (9, 22860027), (27, 7620009), (81, 2540003), (149, 1380807), (447, 460269), (1341, 153423), (4023, 51141), (12069, 17047)]