20128786084

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41588401}}^1$

素因数の和:41588427

約数の個数: 18

約数和(自身を含む): 38718802262

約数和(自身を除く): 18590016178

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41588401, 83176802, 166353604, 457472411, 914944822, 1829889644, 5032196521, 10064393042, 20128786084]

約数ペア:

[(1, 20128786084), (2, 10064393042), (4, 5032196521), (11, 1829889644), (22, 914944822), (44, 457472411), (121, 166353604), (242, 83176802), (484, 41588401)]