20408872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{231919}}^1$

素因数の和:231936

約数の個数: 16

約数和(自身を含む): 41745600

約数和(自身を除く): 21336728

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 231919, 463838, 927676, 1855352, 2551109, 5102218, 10204436, 20408872]

約数ペア:

[(1, 20408872), (2, 10204436), (4, 5102218), (8, 2551109), (11, 1855352), (22, 927676), (44, 463838), (88, 231919)]