21064792

素因数分解:

$2^3\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1949}}^1$

素因数の和:2155

約数の個数: 32

約数和(自身を含む): 45396000

約数和(自身を除く): 24331208

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 193, 386, 772, 1351, 1544, 1949, 2702, 3898, 5404, 7796, 10808, 13643, 15592, 27286, 54572, 109144, 376157, 752314, 1504628, 2633099, 3009256, 5266198, 10532396, 21064792]

約数ペア:

[(1, 21064792), (2, 10532396), (4, 5266198), (7, 3009256), (8, 2633099), (14, 1504628), (28, 752314), (56, 376157), (193, 109144), (386, 54572), (772, 27286), (1351, 15592), (1544, 13643), (1949, 10808), (2702, 7796), (3898, 5404)]