12805221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1571}}^1$

素因数の和:1617

約数の個数: 32

約数和(自身を含む): 21127680

約数和(自身を除く): 8322459

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 1571, 2717, 4713, 8151, 17281, 20423, 29849, 51843, 61269, 89547, 224653, 328339, 388037, 673959, 985017, 1164111, 4268407, 12805221]

約数ペア:

[(1, 12805221), (3, 4268407), (11, 1164111), (13, 985017), (19, 673959), (33, 388037), (39, 328339), (57, 224653), (143, 89547), (209, 61269), (247, 51843), (429, 29849), (627, 20423), (741, 17281), (1571, 8151), (2717, 4713)]