21298130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{304259}}^1$

素因数の和:304273

約数の個数: 16

約数和(自身を含む): 43813440

約数和(自身を除く): 22515310

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 304259, 608518, 1521295, 2129813, 3042590, 4259626, 10649065, 21298130]

約数ペア:

[(1, 21298130), (2, 10649065), (5, 4259626), (7, 3042590), (10, 2129813), (14, 1521295), (35, 608518), (70, 304259)]