20427855

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{27793}}^1$

素因数の和:27815

約数の個数: 24

約数和(自身を含む): 38022192

約数和(自身を除く): 17594337

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 27793, 83379, 138965, 194551, 416895, 583653, 972755, 1361857, 2918265, 4085571, 6809285, 20427855]

約数ペア:

[(1, 20427855), (3, 6809285), (5, 4085571), (7, 2918265), (15, 1361857), (21, 972755), (35, 583653), (49, 416895), (105, 194551), (147, 138965), (245, 83379), (735, 27793)]