12991605

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{78737}}^1$

素因数の和:78756

約数の個数: 16

約数和(自身を含む): 22676544

約数和(自身を除く): 9684939

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 78737, 236211, 393685, 866107, 1181055, 2598321, 4330535, 12991605]

約数ペア:

[(1, 12991605), (3, 4330535), (5, 2598321), (11, 1181055), (15, 866107), (33, 393685), (55, 236211), (165, 78737)]