16987215275

素因数分解:

$5^2\times {\mathrm{1231}}^1\times {\mathrm{551981}}^1$

素因数の和:553222

約数の個数: 12

約数和(自身を含む): 21081296544

約数和(自身を除く): 4094081269

約数列:

[1, 5, 25, 1231, 6155, 30775, 551981, 2759905, 13799525, 679488611, 3397443055, 16987215275]

約数ペア:

[(1, 16987215275), (5, 3397443055), (25, 679488611), (1231, 13799525), (6155, 2759905), (30775, 551981)]