18252729

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 30728320

約数和(自身を除く): 12475591

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 121, 151, 297, 333, 363, 407, 453, 999, 1089, 1221, 1359, 1661, 3267, 3663, 4077, 4477, 4983, 5587, 10989, 13431, 14949, 16761, 18271, 40293, 44847, 50283, 54813, 61457, 120879, 150849, 164439, 184371, 493317, 553113, 676027, 1659339, 2028081, 6084243, 18252729]

約数ペア:

[(1, 18252729), (3, 6084243), (9, 2028081), (11, 1659339), (27, 676027), (33, 553113), (37, 493317), (99, 184371), (111, 164439), (121, 150849), (151, 120879), (297, 61457), (333, 54813), (363, 50283), (407, 44847), (453, 40293), (999, 18271), (1089, 16761), (1221, 14949), (1359, 13431), (1661, 10989), (3267, 5587), (3663, 4983), (4077, 4477)]