20302849

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{521}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 24554880

約数和(自身を除く): 4252031

約数列:

[1, 7, 19, 133, 293, 521, 2051, 3647, 5567, 9899, 38969, 69293, 152653, 1068571, 2900407, 20302849]

約数ペア:

[(1, 20302849), (7, 2900407), (19, 1068571), (133, 152653), (293, 69293), (521, 38969), (2051, 9899), (3647, 5567)]