638242569

素因数分解:

$3^2\times {\mathrm{239}}^1\times {\mathrm{296719}}^1$

素因数の和:296964

約数の個数: 12

約数和(自身を含む): 925766400

約数和(自身を除く): 287523831

約数列:

[1, 3, 9, 239, 717, 2151, 296719, 890157, 2670471, 70915841, 212747523, 638242569]

約数ペア:

[(1, 638242569), (3, 212747523), (9, 70915841), (239, 2670471), (717, 890157), (2151, 296719)]