21040467

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52733}}^1$

素因数の和:52762

約数の個数: 16

約数和(自身を含む): 33749760

約数和(自身を除く): 12709293

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52733, 158199, 369131, 1001927, 1107393, 3005781, 7013489, 21040467]

約数ペア:

[(1, 21040467), (3, 7013489), (7, 3005781), (19, 1107393), (21, 1001927), (57, 369131), (133, 158199), (399, 52733)]