21245424

素因数分解:

$2^4\times 3^1\times {\mathrm{499}}^1\times {\mathrm{887}}^1$

素因数の和:1397

約数の個数: 40

約数和(自身を含む): 55056000

約数和(自身を除く): 33810576

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 499, 887, 998, 1497, 1774, 1996, 2661, 2994, 3548, 3992, 5322, 5988, 7096, 7984, 10644, 11976, 14192, 21288, 23952, 42576, 442613, 885226, 1327839, 1770452, 2655678, 3540904, 5311356, 7081808, 10622712, 21245424]

約数ペア:

[(1, 21245424), (2, 10622712), (3, 7081808), (4, 5311356), (6, 3540904), (8, 2655678), (12, 1770452), (16, 1327839), (24, 885226), (48, 442613), (499, 42576), (887, 23952), (998, 21288), (1497, 14192), (1774, 11976), (1996, 10644), (2661, 7984), (2994, 7096), (3548, 5988), (3992, 5322)]