21089030

素因数分解:

$2^1\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1933}}^1$

素因数の和:3031

約数の個数: 16

約数和(自身を含む): 38014704

約数和(自身を除く): 16925674

約数列:

[1, 2, 5, 10, 1091, 1933, 2182, 3866, 5455, 9665, 10910, 19330, 2108903, 4217806, 10544515, 21089030]

約数ペア:

[(1, 21089030), (2, 10544515), (5, 4217806), (10, 2108903), (1091, 19330), (1933, 10910), (2182, 9665), (3866, 5455)]