21000891271

素因数分解:

${\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{859}}^1\times {\mathrm{2311}}^1$

素因数の和:3390

約数の個数: 16

約数和(自身を含む): 21473856000

約数和(自身を除く): 472964729

約数列:

[1, 71, 149, 859, 2311, 10579, 60989, 127991, 164081, 344339, 1985149, 9087361, 24448069, 140945579, 295787201, 21000891271]

約数ペア:

[(1, 21000891271), (71, 295787201), (149, 140945579), (859, 24448069), (2311, 9087361), (10579, 1985149), (60989, 344339), (127991, 164081)]