20518773

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{967}}^1$

素因数の和:1624

約数の個数: 16

約数和(自身を含む): 29922816

約数和(自身を除く): 9404043

約数列:

[1, 3, 11, 33, 643, 967, 1929, 2901, 7073, 10637, 21219, 31911, 621781, 1865343, 6839591, 20518773]

約数ペア:

[(1, 20518773), (3, 6839591), (11, 1865343), (33, 621781), (643, 31911), (967, 21219), (1929, 10637), (2901, 7073)]