491496009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{121447}}^1$

素因数の和:121540

約数の個数: 16

約数和(自身を含む): 699540480

約数和(自身を除く): 208044471

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 121447, 364341, 2307493, 6922479, 8622737, 25868211, 163832003, 491496009]

約数ペア:

[(1, 491496009), (3, 163832003), (19, 25868211), (57, 8622737), (71, 6922479), (213, 2307493), (1349, 364341), (4047, 121447)]