21161272

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1259}}^1$

素因数の和:1467

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 22384328

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 191, 382, 764, 1259, 1528, 2101, 2518, 4202, 5036, 8404, 10072, 13849, 16808, 27698, 55396, 110792, 240469, 480938, 961876, 1923752, 2645159, 5290318, 10580636, 21161272]

約数ペア:

[(1, 21161272), (2, 10580636), (4, 5290318), (8, 2645159), (11, 1923752), (22, 961876), (44, 480938), (88, 240469), (191, 110792), (382, 55396), (764, 27698), (1259, 16808), (1528, 13849), (2101, 10072), (2518, 8404), (4202, 5036)]