18388161

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{613}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 30061440

約数和(自身を除く): 11673279

約数列:

[1, 3, 9, 11, 27, 33, 99, 101, 297, 303, 613, 909, 1111, 1839, 2727, 3333, 5517, 6743, 9999, 16551, 20229, 29997, 60687, 61913, 182061, 185739, 557217, 681043, 1671651, 2043129, 6129387, 18388161]

約数ペア:

[(1, 18388161), (3, 6129387), (9, 2043129), (11, 1671651), (27, 681043), (33, 557217), (99, 185739), (101, 182061), (297, 61913), (303, 60687), (613, 29997), (909, 20229), (1111, 16551), (1839, 9999), (2727, 6743), (3333, 5517)]