21578792

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{65789}}^1$

素因数の和:65836

約数の個数: 16

約数和(自身を含む): 41447700

約数和(自身を除く): 19868908

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 65789, 131578, 263156, 526312, 2697349, 5394698, 10789396, 21578792]

約数ペア:

[(1, 21578792), (2, 10789396), (4, 5394698), (8, 2697349), (41, 526312), (82, 263156), (164, 131578), (328, 65789)]