21298021276

素因数分解:

$2^2\times 7^1\times {\mathrm{760643617}}^1$

素因数の和:760643628

約数の個数: 12

約数和(自身を含む): 42596042608

約数和(自身を除く): 21298021332

約数列:

[1, 2, 4, 7, 14, 28, 760643617, 1521287234, 3042574468, 5324505319, 10649010638, 21298021276]

約数ペア:

[(1, 21298021276), (2, 10649010638), (4, 5324505319), (7, 3042574468), (14, 1521287234), (28, 760643617)]