18865441

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{2939}}^1$

素因数の和:3084

約数の個数: 12

約数和(自身を含む): 22120560

約数和(自身を除く): 3255119

約数列:

[1, 7, 49, 131, 917, 2939, 6419, 20573, 144011, 385009, 2695063, 18865441]

約数ペア:

[(1, 18865441), (7, 2695063), (49, 385009), (131, 144011), (917, 20573), (2939, 6419)]