205231999

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1\times {\mathrm{919}}^1$

素因数の和:1510

約数の個数: 16

約数和(自身を含む): 239111680

約数和(自身を除く): 33879681

約数列:

[1, 7, 61, 427, 523, 919, 3661, 6433, 31903, 56059, 223321, 392413, 480637, 3364459, 29318857, 205231999]

約数ペア:

[(1, 205231999), (7, 29318857), (61, 3364459), (427, 480637), (523, 392413), (919, 223321), (3661, 56059), (6433, 31903)]