20115179

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1213}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 24241152

約数和(自身を除く): 4125973

約数列:

[1, 7, 23, 103, 161, 721, 1213, 2369, 8491, 16583, 27899, 124939, 195293, 874573, 2873597, 20115179]

約数ペア:

[(1, 20115179), (7, 2873597), (23, 874573), (103, 195293), (161, 124939), (721, 27899), (1213, 16583), (2369, 8491)]