21480452315

素因数分解:

$5^1\times 7^1\times {\mathrm{2579}}^1\times {\mathrm{237971}}^1$

素因数の和:240562

約数の個数: 16

約数和(自身を含む): 29470452480

約数和(自身を除く): 7990000165

約数列:

[1, 5, 7, 35, 2579, 12895, 18053, 90265, 237971, 1189855, 1665797, 8328985, 613727209, 3068636045, 4296090463, 21480452315]

約数ペア:

[(1, 21480452315), (5, 4296090463), (7, 3068636045), (35, 613727209), (2579, 8328985), (12895, 1665797), (18053, 1189855), (90265, 237971)]