620647521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{1999}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 940800000

約数和(自身を除く): 320152479

約数列:

[1, 3, 13, 19, 39, 57, 247, 419, 741, 1257, 1999, 5447, 5997, 7961, 16341, 23883, 25987, 37981, 77961, 103493, 113943, 310479, 493753, 837581, 1481259, 2512743, 10888553, 15914039, 32665659, 47742117, 206882507, 620647521]

約数ペア:

[(1, 620647521), (3, 206882507), (13, 47742117), (19, 32665659), (39, 15914039), (57, 10888553), (247, 2512743), (419, 1481259), (741, 837581), (1257, 493753), (1999, 310479), (5447, 113943), (5997, 103493), (7961, 77961), (16341, 37981), (23883, 25987)]