19651985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6673}}^1$

素因数の和:6728

約数の個数: 16

約数和(自身を含む): 25628160

約数和(自身を除く): 5976175

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6673, 33365, 126787, 206863, 633935, 1034315, 3930397, 19651985]

約数ペア:

[(1, 19651985), (5, 3930397), (19, 1034315), (31, 633935), (95, 206863), (155, 126787), (589, 33365), (2945, 6673)]