21000539956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477284999}}^1$

素因数の和:477285014

約数の個数: 12

約数和(自身を含む): 40091940000

約数和(自身を除く): 19091400044

約数列:

[1, 2, 4, 11, 22, 44, 477284999, 954569998, 1909139996, 5250134989, 10500269978, 21000539956]

約数ペア:

[(1, 21000539956), (2, 10500269978), (4, 5250134989), (11, 1909139996), (22, 954569998), (44, 477284999)]