19911098

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{499}}^1$

素因数の和:853

約数の個数: 16

約数和(自身を含む): 30456000

約数和(自身を除く): 10544902

約数列:

[1, 2, 71, 142, 281, 499, 562, 998, 19951, 35429, 39902, 70858, 140219, 280438, 9955549, 19911098]

約数ペア:

[(1, 19911098), (2, 9955549), (71, 280438), (142, 140219), (281, 70858), (499, 39902), (562, 35429), (998, 19951)]