20984697

素因数分解:

$3^3\times {\mathrm{193}}^1\times {\mathrm{4027}}^1$

素因数の和:4229

約数の個数: 16

約数和(自身を含む): 31257280

約数和(自身を除く): 10272583

約数列:

[1, 3, 9, 27, 193, 579, 1737, 4027, 5211, 12081, 36243, 108729, 777211, 2331633, 6994899, 20984697]

約数ペア:

[(1, 20984697), (3, 6994899), (9, 2331633), (27, 777211), (193, 108729), (579, 36243), (1737, 12081), (4027, 5211)]