289278321

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{18749}}^1$

素因数の和:18928

約数の個数: 16

約数和(自身を含む): 399000000

約数和(自身を除く): 109721679

約数列:

[1, 3, 37, 111, 139, 417, 5143, 15429, 18749, 56247, 693713, 2081139, 2606111, 7818333, 96426107, 289278321]

約数ペア:

[(1, 289278321), (3, 96426107), (37, 7818333), (111, 2606111), (139, 2081139), (417, 693713), (5143, 56247), (15429, 18749)]