12987495

素因数分解:

$3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1123}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 22619376

約数和(自身を除く): 9631881

約数列:

[1, 3, 5, 9, 15, 45, 257, 771, 1123, 1285, 2313, 3369, 3855, 5615, 10107, 11565, 16845, 50535, 288611, 865833, 1443055, 2597499, 4329165, 12987495]

約数ペア:

[(1, 12987495), (3, 4329165), (5, 2597499), (9, 1443055), (15, 865833), (45, 288611), (257, 50535), (771, 16845), (1123, 11565), (1285, 10107), (2313, 5615), (3369, 3855)]