289970821

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{78307}}^1$

素因数の和:78360

約数の個数: 12

約数和(自身を含む): 346434592

約数和(自身を除く): 56463771

約数列:

[1, 7, 23, 161, 529, 3703, 78307, 548149, 1801061, 12607427, 41424403, 289970821]

約数ペア:

[(1, 289970821), (7, 41424403), (23, 12607427), (161, 1801061), (529, 548149), (3703, 78307)]