18709383

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 32345600

約数和(自身を除く): 13636217

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 121, 199, 231, 259, 363, 407, 597, 777, 847, 1221, 1393, 2189, 2541, 2849, 4179, 4477, 6567, 7363, 8547, 13431, 15323, 22089, 24079, 31339, 45969, 51541, 72237, 80993, 94017, 154623, 168553, 242979, 505659, 566951, 890923, 1700853, 2672769, 6236461, 18709383]

約数ペア:

[(1, 18709383), (3, 6236461), (7, 2672769), (11, 1700853), (21, 890923), (33, 566951), (37, 505659), (77, 242979), (111, 168553), (121, 154623), (199, 94017), (231, 80993), (259, 72237), (363, 51541), (407, 45969), (597, 31339), (777, 24079), (847, 22089), (1221, 15323), (1393, 13431), (2189, 8547), (2541, 7363), (2849, 6567), (4179, 4477)]