20943021

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14759}}^1$

素因数の和:14816

約数の個数: 16

約数和(自身を含む): 31173120

約数和(自身を除く): 10230099

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14759, 44277, 162349, 487047, 634637, 1903911, 6981007, 20943021]

約数ペア:

[(1, 20943021), (3, 6981007), (11, 1903911), (33, 634637), (43, 487047), (129, 162349), (473, 44277), (1419, 14759)]