21960008

素因数分解:

$2^3\times 7^1\times {\mathrm{392143}}^1$

素因数の和:392156

約数の個数: 16

約数和(自身を含む): 47057280

約数和(自身を除く): 25097272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 392143, 784286, 1568572, 2745001, 3137144, 5490002, 10980004, 21960008]

約数ペア:

[(1, 21960008), (2, 10980004), (4, 5490002), (7, 3137144), (8, 2745001), (14, 1568572), (28, 784286), (56, 392143)]