12921315

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{78311}}^1$

素因数の和:78330

約数の個数: 16

約数和(自身を含む): 22553856

約数和(自身を除く): 9632541

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 78311, 234933, 391555, 861421, 1174665, 2584263, 4307105, 12921315]

約数ペア:

[(1, 12921315), (3, 4307105), (5, 2584263), (11, 1174665), (15, 861421), (33, 391555), (55, 234933), (165, 78311)]