21048464

素因数分解:

$2^4\times {\mathrm{1019}}^1\times {\mathrm{1291}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 40853040

約数和(自身を除く): 19804576

約数列:

[1, 2, 4, 8, 16, 1019, 1291, 2038, 2582, 4076, 5164, 8152, 10328, 16304, 20656, 1315529, 2631058, 5262116, 10524232, 21048464]

約数ペア:

[(1, 21048464), (2, 10524232), (4, 5262116), (8, 2631058), (16, 1315529), (1019, 20656), (1291, 16304), (2038, 10328), (2582, 8152), (4076, 5164)]