20128947

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{859}}^1$

素因数の和:1042

約数の個数: 16

約数和(自身を含む): 27492480

約数和(自身を除く): 7363533

約数列:

[1, 3, 73, 107, 219, 321, 859, 2577, 7811, 23433, 62707, 91913, 188121, 275739, 6709649, 20128947]

約数ペア:

[(1, 20128947), (3, 6709649), (73, 275739), (107, 188121), (219, 91913), (321, 62707), (859, 23433), (2577, 7811)]