20956856

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19997}}^1$

素因数の和:20134

約数の個数: 16

約数和(自身を含む): 39596040

約数和(自身を除く): 18639184

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19997, 39994, 79988, 159976, 2619607, 5239214, 10478428, 20956856]

約数ペア:

[(1, 20956856), (2, 10478428), (4, 5239214), (8, 2619607), (131, 159976), (262, 79988), (524, 39994), (1048, 19997)]