21879986

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{20759}}^1$

素因数の和:20809

約数の個数: 16

約数和(自身を含む): 35873280

約数和(自身を除く): 13993294

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 20759, 41518, 352903, 643529, 705806, 1287058, 10939993, 21879986]

約数ペア:

[(1, 21879986), (2, 10939993), (17, 1287058), (31, 705806), (34, 643529), (62, 352903), (527, 41518), (1054, 20759)]