19390492

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40063}}^1$

素因数の和:40089

約数の個数: 18

約数和(自身を含む): 37299584

約数和(自身を除く): 17909092

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40063, 80126, 160252, 440693, 881386, 1762772, 4847623, 9695246, 19390492]

約数ペア:

[(1, 19390492), (2, 9695246), (4, 4847623), (11, 1762772), (22, 881386), (44, 440693), (121, 160252), (242, 80126), (484, 40063)]