20557394

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71879}}^1$

素因数の和:71905

約数の個数: 16

約数和(自身を含む): 36227520

約数和(自身を除く): 15670126

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 71879, 143758, 790669, 934427, 1581338, 1868854, 10278697, 20557394]

約数ペア:

[(1, 20557394), (2, 10278697), (11, 1868854), (13, 1581338), (22, 934427), (26, 790669), (143, 143758), (286, 71879)]