128306031

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{321569}}^1$

素因数の和:321598

約数の個数: 16

約数和(自身を含む): 205804800

約数和(自身を除く): 77498769

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 321569, 964707, 2250983, 6109811, 6752949, 18329433, 42768677, 128306031]

約数ペア:

[(1, 128306031), (3, 42768677), (7, 18329433), (19, 6752949), (21, 6109811), (57, 2250983), (133, 964707), (399, 321569)]