19966891

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{8831}}^1$

素因数の和:8874

約数の個数: 16

約数和(自身を含む): 25436160

約数和(自身を除く): 5469269

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 8831, 61817, 150127, 167789, 1050889, 1174523, 2852413, 19966891]

約数ペア:

[(1, 19966891), (7, 2852413), (17, 1174523), (19, 1050889), (119, 167789), (133, 150127), (323, 61817), (2261, 8831)]