28781391

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{8423}}^1$

素因数の和:8510

約数の個数: 16

約数和(自身を含む): 41243904

約数和(自身を除く): 12462513

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 8423, 25269, 143191, 429573, 564341, 1693023, 9593797, 28781391]

約数ペア:

[(1, 28781391), (3, 9593797), (17, 1693023), (51, 564341), (67, 429573), (201, 143191), (1139, 25269), (3417, 8423)]