20854779

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2459}}^1$

素因数の和:2730

約数の個数: 16

約数和(自身を含む): 30464640

約数和(自身を除く): 9609861

約数列:

[1, 3, 11, 33, 257, 771, 2459, 2827, 7377, 8481, 27049, 81147, 631963, 1895889, 6951593, 20854779]

約数ペア:

[(1, 20854779), (3, 6951593), (11, 1895889), (33, 631963), (257, 81147), (771, 27049), (2459, 8481), (2827, 7377)]