19375004

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40031}}^1$

素因数の和:40057

約数の個数: 18

約数和(自身を含む): 37269792

約数和(自身を除く): 17894788

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40031, 80062, 160124, 440341, 880682, 1761364, 4843751, 9687502, 19375004]

約数ペア:

[(1, 19375004), (2, 9687502), (4, 4843751), (11, 1761364), (22, 880682), (44, 440341), (121, 160124), (242, 80062), (484, 40031)]