18161549

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{7187}}^1$

素因数の和:7232

約数の個数: 12

約数和(自身を含む): 21909024

約数和(自身を除く): 3747475

約数列:

[1, 7, 19, 133, 361, 2527, 7187, 50309, 136553, 955871, 2594507, 18161549]

約数ペア:

[(1, 18161549), (7, 2594507), (19, 955871), (133, 136553), (361, 50309), (2527, 7187)]