18549729

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 40

約数和(自身を含む): 30666240

約数和(自身を除く): 12116511

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 109, 191, 297, 327, 573, 891, 981, 1199, 1719, 2101, 2943, 3597, 5157, 6303, 8829, 10791, 15471, 18909, 20819, 32373, 56727, 62457, 97119, 170181, 187371, 229009, 562113, 687027, 1686339, 2061081, 6183243, 18549729]

約数ペア:

[(1, 18549729), (3, 6183243), (9, 2061081), (11, 1686339), (27, 687027), (33, 562113), (81, 229009), (99, 187371), (109, 170181), (191, 97119), (297, 62457), (327, 56727), (573, 32373), (891, 20819), (981, 18909), (1199, 15471), (1719, 10791), (2101, 8829), (2943, 6303), (3597, 5157)]