20729236

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42829}}^1$

素因数の和:42855

約数の個数: 18

約数和(自身を含む): 39874730

約数和(自身を除く): 19145494

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42829, 85658, 171316, 471119, 942238, 1884476, 5182309, 10364618, 20729236]

約数ペア:

[(1, 20729236), (2, 10364618), (4, 5182309), (11, 1884476), (22, 942238), (44, 471119), (121, 171316), (242, 85658), (484, 42829)]