18987976

素因数分解:

$2^3\times 7^1\times {\mathrm{339071}}^1$

素因数の和:339084

約数の個数: 16

約数和(自身を含む): 40688640

約数和(自身を除く): 21700664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 339071, 678142, 1356284, 2373497, 2712568, 4746994, 9493988, 18987976]

約数ペア:

[(1, 18987976), (2, 9493988), (4, 4746994), (7, 2712568), (8, 2373497), (14, 1356284), (28, 678142), (56, 339071)]