18784161

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:442

約数の個数: 36

約数和(自身を含む): 30541056

約数和(自身を除く): 11756895

約数列:

[1, 3, 9, 11, 33, 47, 99, 121, 141, 363, 367, 423, 517, 1089, 1101, 1551, 3303, 4037, 4653, 5687, 12111, 17061, 17249, 36333, 44407, 51183, 51747, 133221, 155241, 189739, 399663, 569217, 1707651, 2087129, 6261387, 18784161]

約数ペア:

[(1, 18784161), (3, 6261387), (9, 2087129), (11, 1707651), (33, 569217), (47, 399663), (99, 189739), (121, 155241), (141, 133221), (363, 51747), (367, 51183), (423, 44407), (517, 36333), (1089, 17249), (1101, 17061), (1551, 12111), (3303, 5687), (4037, 4653)]