21299768

素因数分解:

$2^3\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1223}}^1$

素因数の和:1547

約数の個数: 32

約数和(自身を含む): 45826560

約数和(自身を除く): 24526792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 311, 622, 1223, 1244, 2177, 2446, 2488, 4354, 4892, 8561, 8708, 9784, 17122, 17416, 34244, 68488, 380353, 760706, 1521412, 2662471, 3042824, 5324942, 10649884, 21299768]

約数ペア:

[(1, 21299768), (2, 10649884), (4, 5324942), (7, 3042824), (8, 2662471), (14, 1521412), (28, 760706), (56, 380353), (311, 68488), (622, 34244), (1223, 17416), (1244, 17122), (2177, 9784), (2446, 8708), (2488, 8561), (4354, 4892)]