21304810568

素因数分解:

$2^3\times {\mathrm{7907}}^1\times {\mathrm{336803}}^1$

素因数の和:344716

約数の個数: 16

約数和(自身を含む): 39951690480

約数和(自身を除く): 18646879912

約数列:

[1, 2, 4, 8, 7907, 15814, 31628, 63256, 336803, 673606, 1347212, 2694424, 2663101321, 5326202642, 10652405284, 21304810568]

約数ペア:

[(1, 21304810568), (2, 10652405284), (4, 5326202642), (8, 2663101321), (7907, 2694424), (15814, 1347212), (31628, 673606), (63256, 336803)]