18027664

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26203}}^1$

素因数の和:26254

約数の個数: 20

約数和(自身を含む): 35742256

約数和(自身を除く): 17714592

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26203, 52406, 104812, 209624, 419248, 1126729, 2253458, 4506916, 9013832, 18027664]

約数ペア:

[(1, 18027664), (2, 9013832), (4, 4506916), (8, 2253458), (16, 1126729), (43, 419248), (86, 209624), (172, 104812), (344, 52406), (688, 26203)]