28117782

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20287}}^1$

素因数の和:20313

約数の個数: 48

約数和(自身を含む): 75958272

約数和(自身を除く): 47840490

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 20287, 40574, 60861, 121722, 142009, 182583, 223157, 284018, 365166, 426027, 446314, 669471, 852054, 1278081, 1338942, 1562099, 2008413, 2556162, 3124198, 4016826, 4686297, 9372594, 14058891, 28117782]

約数ペア:

[(1, 28117782), (2, 14058891), (3, 9372594), (6, 4686297), (7, 4016826), (9, 3124198), (11, 2556162), (14, 2008413), (18, 1562099), (21, 1338942), (22, 1278081), (33, 852054), (42, 669471), (63, 446314), (66, 426027), (77, 365166), (99, 284018), (126, 223157), (154, 182583), (198, 142009), (231, 121722), (462, 60861), (693, 40574), (1386, 20287)]