19710665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4271}}^1$

素因数の和:4360

約数の個数: 16

約数和(自身を含む): 25837056

約数和(自身を除く): 6126391

約数列:

[1, 5, 13, 65, 71, 355, 923, 4271, 4615, 21355, 55523, 277615, 303241, 1516205, 3942133, 19710665]

約数ペア:

[(1, 19710665), (5, 3942133), (13, 1516205), (65, 303241), (71, 277615), (355, 55523), (923, 21355), (4271, 4615)]