18585217

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 21715200

約数和(自身を除く): 3129983

約数列:

[1, 7, 103, 149, 173, 721, 1043, 1211, 15347, 17819, 25777, 107429, 124733, 180439, 2655031, 18585217]

約数ペア:

[(1, 18585217), (7, 2655031), (103, 180439), (149, 124733), (173, 107429), (721, 25777), (1043, 17819), (1211, 15347)]