18255005

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 22581504

約数和(自身を除く): 4326499

約数列:

[1, 5, 43, 197, 215, 431, 985, 2155, 8471, 18533, 42355, 84907, 92665, 424535, 3651001, 18255005]

約数ペア:

[(1, 18255005), (5, 3651001), (43, 424535), (197, 92665), (215, 84907), (431, 42355), (985, 18533), (2155, 8471)]