20427799

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 24171840

約数和(自身を除く): 3744041

約数列:

[1, 7, 41, 109, 287, 653, 763, 4469, 4571, 26773, 31283, 71177, 187411, 498239, 2918257, 20427799]

約数ペア:

[(1, 20427799), (7, 2918257), (41, 498239), (109, 187411), (287, 71177), (653, 31283), (763, 26773), (4469, 4571)]