20909178

素因数分解:

$2^1\times 3^6\times {\mathrm{14341}}^1$

素因数の和:14361

約数の個数: 28

約数和(自身を含む): 47027418

約数和(自身を除く): 26118240

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 729, 1458, 14341, 28682, 43023, 86046, 129069, 258138, 387207, 774414, 1161621, 2323242, 3484863, 6969726, 10454589, 20909178]

約数ペア:

[(1, 20909178), (2, 10454589), (3, 6969726), (6, 3484863), (9, 2323242), (18, 1161621), (27, 774414), (54, 387207), (81, 258138), (162, 129069), (243, 86046), (486, 43023), (729, 28682), (1458, 14341)]