20815706681

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9321857}}^1$

素因数の和:9321904

約数の個数: 16

約数和(自身を含む): 26846951040

約数和(自身を除く): 6031244359

約数列:

[1, 7, 11, 29, 77, 203, 319, 2233, 9321857, 65252999, 102540427, 270333853, 717782989, 1892336971, 2973672383, 20815706681]

約数ペア:

[(1, 20815706681), (7, 2973672383), (11, 1892336971), (29, 717782989), (77, 270333853), (203, 102540427), (319, 65252999), (2233, 9321857)]