21173656

素因数分解:

$2^3\times 7^1\times {\mathrm{378101}}^1$

素因数の和:378114

約数の個数: 16

約数和(自身を含む): 45372240

約数和(自身を除く): 24198584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378101, 756202, 1512404, 2646707, 3024808, 5293414, 10586828, 21173656]

約数ペア:

[(1, 21173656), (2, 10586828), (4, 5293414), (7, 3024808), (8, 2646707), (14, 1512404), (28, 756202), (56, 378101)]