19995706

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4231}}^1$

素因数の和:4389

約数の個数: 16

約数和(自身を含む): 31993920

約数和(自身を除く): 11998214

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4231, 4726, 8462, 71927, 143854, 588109, 1176218, 9997853, 19995706]

約数ペア:

[(1, 19995706), (2, 9997853), (17, 1176218), (34, 588109), (139, 143854), (278, 71927), (2363, 8462), (4231, 4726)]