20479879

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 24053760

約数和(自身を除く): 3573881

約数列:

[1, 7, 71, 89, 463, 497, 623, 3241, 6319, 32873, 41207, 44233, 230111, 288449, 2925697, 20479879]

約数ペア:

[(1, 20479879), (7, 2925697), (71, 288449), (89, 230111), (463, 44233), (497, 41207), (623, 32873), (3241, 6319)]