21320277

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1499}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 31104000

約数和(自身を除く): 9783723

約数列:

[1, 3, 11, 33, 431, 1293, 1499, 4497, 4741, 14223, 16489, 49467, 646069, 1938207, 7106759, 21320277]

約数ペア:

[(1, 21320277), (3, 7106759), (11, 1938207), (33, 646069), (431, 49467), (1293, 16489), (1499, 14223), (4497, 4741)]