20480757

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21401}}^1$

素因数の和:21444

約数の個数: 16

約数和(自身を含む): 30818880

約数和(自身を除く): 10338123

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21401, 64203, 235411, 620629, 706233, 1861887, 6826919, 20480757]

約数ペア:

[(1, 20480757), (3, 6826919), (11, 1861887), (29, 706233), (33, 620629), (87, 235411), (319, 64203), (957, 21401)]