81810189

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 126345600

約数和(自身を除く): 44535411

約数列:

[1, 3, 9, 27, 29, 87, 163, 261, 489, 641, 783, 1467, 1923, 4401, 4727, 5769, 14181, 17307, 18589, 42543, 55767, 104483, 127629, 167301, 313449, 501903, 940347, 2821041, 3030007, 9090021, 27270063, 81810189]

約数ペア:

[(1, 81810189), (3, 27270063), (9, 9090021), (27, 3030007), (29, 2821041), (87, 940347), (163, 501903), (261, 313449), (489, 167301), (641, 127629), (783, 104483), (1467, 55767), (1923, 42543), (4401, 18589), (4727, 17307), (5769, 14181)]