12988965

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{78721}}^1$

素因数の和:78740

約数の個数: 16

約数和(自身を含む): 22671936

約数和(自身を除く): 9682971

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 78721, 236163, 393605, 865931, 1180815, 2597793, 4329655, 12988965]

約数ペア:

[(1, 12988965), (3, 4329655), (5, 2597793), (11, 1180815), (15, 865931), (33, 393605), (55, 236163), (165, 78721)]