18152911

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{823}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 21832704

約数和(自身を除く): 3679793

約数列:

[1, 7, 23, 137, 161, 823, 959, 3151, 5761, 18929, 22057, 112751, 132503, 789257, 2593273, 18152911]

約数ペア:

[(1, 18152911), (7, 2593273), (23, 789257), (137, 132503), (161, 112751), (823, 22057), (959, 18929), (3151, 5761)]