19668187

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2111}}^1$

素因数の和:2151

約数の個数: 16

約数和(自身を含む): 24735744

約数和(自身を除く): 5067557

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2111, 9317, 14777, 23221, 162547, 255431, 1788017, 2809741, 19668187]

約数ペア:

[(1, 19668187), (7, 2809741), (11, 1788017), (77, 255431), (121, 162547), (847, 23221), (1331, 14777), (2111, 9317)]