81067021

素因数分解:

$7^3\times {\mathrm{127}}^1\times {\mathrm{1861}}^1$

素因数の和:2009

約数の個数: 16

約数和(自身を含む): 95334400

約数和(自身を除く): 14267379

約数列:

[1, 7, 49, 127, 343, 889, 1861, 6223, 13027, 43561, 91189, 236347, 638323, 1654429, 11581003, 81067021]

約数ペア:

[(1, 81067021), (7, 11581003), (49, 1654429), (127, 638323), (343, 236347), (889, 91189), (1861, 43561), (6223, 13027)]