20887618

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{1021}}^1$

素因数の和:1269

約数の個数: 16

約数和(自身を含む): 32119416

約数和(自身を除く): 11231798

約数列:

[1, 2, 53, 106, 193, 386, 1021, 2042, 10229, 20458, 54113, 108226, 197053, 394106, 10443809, 20887618]

約数ペア:

[(1, 20887618), (2, 10443809), (53, 394106), (106, 197053), (193, 108226), (386, 54113), (1021, 20458), (2042, 10229)]