20171978204

素因数分解:

$2^2\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1377491}}^1$

素因数の和:1378025

約数の個数: 24

約数和(自身を含む): 40421125248

約数和(自身を除く): 20249147044

約数列:

[1, 2, 4, 7, 14, 28, 523, 1046, 2092, 3661, 7322, 14644, 1377491, 2754982, 5509964, 9642437, 19284874, 38569748, 720427793, 1440855586, 2881711172, 5042994551, 10085989102, 20171978204]

約数ペア:

[(1, 20171978204), (2, 10085989102), (4, 5042994551), (7, 2881711172), (14, 1440855586), (28, 720427793), (523, 38569748), (1046, 19284874), (2092, 9642437), (3661, 5509964), (7322, 2754982), (14644, 1377491)]