21283172008

素因数分解:

$2^3\times 7^1\times {\mathrm{380056643}}^1$

素因数の和:380056656

約数の個数: 16

約数和(自身を含む): 45606797280

約数和(自身を除く): 24323625272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 380056643, 760113286, 1520226572, 2660396501, 3040453144, 5320793002, 10641586004, 21283172008]

約数ペア:

[(1, 21283172008), (2, 10641586004), (4, 5320793002), (7, 3040453144), (8, 2660396501), (14, 1520226572), (28, 760113286), (56, 380056643)]