21648424

素因数分解:

$2^3\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2003}}^1$

素因数の和:2209

約数の個数: 32

約数和(自身を含む): 46653120

約数和(自身を除く): 25004696

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 193, 386, 772, 1351, 1544, 2003, 2702, 4006, 5404, 8012, 10808, 14021, 16024, 28042, 56084, 112168, 386579, 773158, 1546316, 2706053, 3092632, 5412106, 10824212, 21648424]

約数ペア:

[(1, 21648424), (2, 10824212), (4, 5412106), (7, 3092632), (8, 2706053), (14, 1546316), (28, 773158), (56, 386579), (193, 112168), (386, 56084), (772, 28042), (1351, 16024), (1544, 14021), (2003, 10808), (2702, 8012), (4006, 5404)]