19925438

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{167}}^1\times {\mathrm{353}}^1$

素因数の和:548

約数の個数: 24

約数和(自身を含む): 32650128

約数和(自身を除く): 12724690

約数列:

[1, 2, 13, 26, 167, 169, 334, 338, 353, 706, 2171, 4342, 4589, 9178, 28223, 56446, 58951, 59657, 117902, 119314, 766363, 1532726, 9962719, 19925438]

約数ペア:

[(1, 19925438), (2, 9962719), (13, 1532726), (26, 766363), (167, 119314), (169, 117902), (334, 59657), (338, 58951), (353, 56446), (706, 28223), (2171, 9178), (4342, 4589)]