251016489

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{106861}}^1$

素因数の和:106902

約数の個数: 20

約数和(自身を含む): 387909060

約数和(自身を除く): 136892571

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 106861, 320583, 961749, 2885247, 3098969, 8655741, 9296907, 27890721, 83672163, 251016489]

約数ペア:

[(1, 251016489), (3, 83672163), (9, 27890721), (27, 9296907), (29, 8655741), (81, 3098969), (87, 2885247), (261, 961749), (783, 320583), (2349, 106861)]