19819828

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1783}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 39761792

約数和(自身を除く): 19941964

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1588, 1783, 2779, 3566, 5558, 7132, 11116, 12481, 24962, 49924, 707851, 1415702, 2831404, 4954957, 9909914, 19819828]

約数ペア:

[(1, 19819828), (2, 9909914), (4, 4954957), (7, 2831404), (14, 1415702), (28, 707851), (397, 49924), (794, 24962), (1588, 12481), (1783, 11116), (2779, 7132), (3566, 5558)]