19987208

素因数分解:

$2^3\times {\mathrm{503}}^1\times {\mathrm{4967}}^1$

素因数の和:5476

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 17570872

約数列:

[1, 2, 4, 8, 503, 1006, 2012, 4024, 4967, 9934, 19868, 39736, 2498401, 4996802, 9993604, 19987208]

約数ペア:

[(1, 19987208), (2, 9993604), (4, 4996802), (8, 2498401), (503, 39736), (1006, 19868), (2012, 9934), (4024, 4967)]