19311556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{438899}}^1$

素因数の和:438914

約数の個数: 12

約数和(自身を含む): 36867600

約数和(自身を除く): 17556044

約数列:

[1, 2, 4, 11, 22, 44, 438899, 877798, 1755596, 4827889, 9655778, 19311556]

約数ペア:

[(1, 19311556), (2, 9655778), (4, 4827889), (11, 1755596), (22, 877798), (44, 438899)]