19998862

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{2179}}^1$

素因数の和:2547

約数の個数: 16

約数和(自身を含む): 32412240

約数和(自身を除く): 12413378

約数列:

[1, 2, 13, 26, 353, 706, 2179, 4358, 4589, 9178, 28327, 56654, 769187, 1538374, 9999431, 19998862]

約数ペア:

[(1, 19998862), (2, 9999431), (13, 1538374), (26, 769187), (353, 56654), (706, 28327), (2179, 9178), (4358, 4589)]