81050879

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 101261952

約数和(自身を除く): 20211073

約数列:

[1, 7, 13, 91, 131, 169, 523, 917, 1183, 1703, 3661, 6799, 11921, 22139, 47593, 68513, 88387, 154973, 479591, 618709, 890669, 6234683, 11578697, 81050879]

約数ペア:

[(1, 81050879), (7, 11578697), (13, 6234683), (91, 890669), (131, 618709), (169, 479591), (523, 154973), (917, 88387), (1183, 68513), (1703, 47593), (3661, 22139), (6799, 11921)]