20829796

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1009}}^1$

素因数の和:1423

約数の個数: 24

約数和(自身を含む): 39394040

約数和(自身を除く): 18564244

約数列:

[1, 2, 4, 13, 26, 52, 397, 794, 1009, 1588, 2018, 4036, 5161, 10322, 13117, 20644, 26234, 52468, 400573, 801146, 1602292, 5207449, 10414898, 20829796]

約数ペア:

[(1, 20829796), (2, 10414898), (4, 5207449), (13, 1602292), (26, 801146), (52, 400573), (397, 52468), (794, 26234), (1009, 20644), (1588, 13117), (2018, 10322), (4036, 5161)]