12390321

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{691}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 17050880

約数和(自身を除く): 4660559

約数列:

[1, 3, 43, 129, 139, 417, 691, 2073, 5977, 17931, 29713, 89139, 96049, 288147, 4130107, 12390321]

約数ペア:

[(1, 12390321), (3, 4130107), (43, 288147), (129, 96049), (139, 89139), (417, 29713), (691, 17931), (2073, 5977)]