209815319

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{2657}}^1$

素因数の和:3082

約数の個数: 16

約数和(自身を含む): 248788800

約数和(自身を除く): 38973481

約数列:

[1, 7, 29, 203, 389, 2657, 2723, 11281, 18599, 77053, 78967, 539371, 1033573, 7235011, 29973617, 209815319]

約数ペア:

[(1, 209815319), (7, 29973617), (29, 7235011), (203, 1033573), (389, 539371), (2657, 78967), (2723, 77053), (11281, 18599)]