19969105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4327}}^1$

素因数の和:4416

約数の個数: 16

約数和(自身を含む): 26175744

約数和(自身を除く): 6206639

約数列:

[1, 5, 13, 65, 71, 355, 923, 4327, 4615, 21635, 56251, 281255, 307217, 1536085, 3993821, 19969105]

約数ペア:

[(1, 19969105), (5, 3993821), (13, 1536085), (65, 307217), (71, 281255), (355, 56251), (923, 21635), (4327, 4615)]