28642971

素因数分解:

$3^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{1997}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 43732224

約数和(自身を除く): 15089253

約数列:

[1, 3, 7, 21, 683, 1997, 2049, 4781, 5991, 13979, 14343, 41937, 1363951, 4091853, 9547657, 28642971]

約数ペア:

[(1, 28642971), (3, 9547657), (7, 4091853), (21, 1363951), (683, 41937), (1997, 14343), (2049, 13979), (4781, 5991)]