18268131

素因数分解:

$3^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{823}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 28556544

約数和(自身を除く): 10288413

約数列:

[1, 3, 7, 21, 49, 147, 151, 453, 823, 1057, 2469, 3171, 5761, 7399, 17283, 22197, 40327, 120981, 124273, 372819, 869911, 2609733, 6089377, 18268131]

約数ペア:

[(1, 18268131), (3, 6089377), (7, 2609733), (21, 869911), (49, 372819), (147, 124273), (151, 120981), (453, 40327), (823, 22197), (1057, 17283), (2469, 7399), (3171, 5761)]