20081001

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{4099}}^1$

素因数の和:4196

約数の個数: 16

約数和(自身を含む): 28339200

約数和(自身を除く): 8258199

約数列:

[1, 3, 23, 69, 71, 213, 1633, 4099, 4899, 12297, 94277, 282831, 291029, 873087, 6693667, 20081001]

約数ペア:

[(1, 20081001), (3, 6693667), (23, 873087), (69, 291029), (71, 282831), (213, 94277), (1633, 12297), (4099, 4899)]