19664690

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18041}}^1$

素因数の和:18157

約数の個数: 16

約数和(自身を含む): 35723160

約数和(自身を除く): 16058470

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18041, 36082, 90205, 180410, 1966469, 3932938, 9832345, 19664690]

約数ペア:

[(1, 19664690), (2, 9832345), (5, 3932938), (10, 1966469), (109, 180410), (218, 90205), (545, 36082), (1090, 18041)]