21252104

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64793}}^1$

素因数の和:64840

約数の個数: 16

約数和(自身を含む): 40820220

約数和(自身を除く): 19568116

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64793, 129586, 259172, 518344, 2656513, 5313026, 10626052, 21252104]

約数ペア:

[(1, 21252104), (2, 10626052), (4, 5313026), (8, 2656513), (41, 518344), (82, 259172), (164, 129586), (328, 64793)]