19849772

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{859}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 35758800

約数和(自身を除く): 15909028

約数列:

[1, 2, 4, 53, 106, 109, 212, 218, 436, 859, 1718, 3436, 5777, 11554, 23108, 45527, 91054, 93631, 182108, 187262, 374524, 4962443, 9924886, 19849772]

約数ペア:

[(1, 19849772), (2, 9924886), (4, 4962443), (53, 374524), (106, 187262), (109, 182108), (212, 93631), (218, 91054), (436, 45527), (859, 23108), (1718, 11554), (3436, 5777)]