20845581

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{907}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 28591104

約数和(自身を除く): 7745523

約数列:

[1, 3, 47, 141, 163, 489, 907, 2721, 7661, 22983, 42629, 127887, 147841, 443523, 6948527, 20845581]

約数ペア:

[(1, 20845581), (3, 6948527), (47, 443523), (141, 147841), (163, 127887), (489, 42629), (907, 22983), (2721, 7661)]