20828759

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24480000

約数和(自身を除く): 3651241

約数列:

[1, 7, 67, 89, 469, 499, 623, 3493, 5963, 33433, 41741, 44411, 234031, 310877, 2975537, 20828759]

約数ペア:

[(1, 20828759), (7, 2975537), (67, 310877), (89, 234031), (469, 44411), (499, 41741), (623, 33433), (3493, 5963)]