20995676

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5531}}^1$

素因数の和:5621

約数の個数: 24

約数和(自身を含む): 40118064

約数和(自身を除く): 19122388

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5531, 11062, 22124, 71903, 143806, 287612, 403763, 807526, 1615052, 5248919, 10497838, 20995676]

約数ペア:

[(1, 20995676), (2, 10497838), (4, 5248919), (13, 1615052), (26, 807526), (52, 403763), (73, 287612), (146, 143806), (292, 71903), (949, 22124), (1898, 11062), (3796, 5531)]