397491543

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{213361}}^1$

素因数の和:213396

約数の個数: 20

約数和(自身を含む): 619603248

約数和(自身を除く): 222111705

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 213361, 640083, 1920249, 4907303, 5760747, 14721909, 17282241, 44165727, 132497181, 397491543]

約数ペア:

[(1, 397491543), (3, 132497181), (9, 44165727), (23, 17282241), (27, 14721909), (69, 5760747), (81, 4907303), (207, 1920249), (621, 640083), (1863, 213361)]