261567243

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 108

約数和(自身を含む): 487850688

約数和(自身を除く): 226283445

約数列:

[1, 3, 7, 9, 19, 21, 31, 49, 53, 57, 63, 93, 133, 147, 159, 171, 217, 279, 361, 371, 399, 441, 477, 589, 651, 931, 1007, 1083, 1113, 1197, 1519, 1643, 1767, 1953, 2527, 2597, 2793, 3021, 3249, 3339, 4123, 4557, 4929, 5301, 7049, 7581, 7791, 8379, 9063, 11191, 11501, 12369, 13671, 14787, 17689, 19133, 21147, 22743, 23373, 28861, 31217, 33573, 34503, 37107, 49343, 53067, 57399, 63441, 78337, 80507, 86583, 93651, 100719, 103509, 133931, 148029, 159201, 172197, 218519, 235011, 241521, 259749, 280953, 401793, 444087, 548359, 593123, 655557, 705033, 724563, 937517, 1205379, 1529633, 1645077, 1779369, 1966671, 2812551, 4151861, 4588899, 4935231, 5338107, 8437653, 12455583, 13766697, 29063027, 37366749, 87189081, 261567243]

約数ペア:

[(1, 261567243), (3, 87189081), (7, 37366749), (9, 29063027), (19, 13766697), (21, 12455583), (31, 8437653), (49, 5338107), (53, 4935231), (57, 4588899), (63, 4151861), (93, 2812551), (133, 1966671), (147, 1779369), (159, 1645077), (171, 1529633), (217, 1205379), (279, 937517), (361, 724563), (371, 705033), (399, 655557), (441, 593123), (477, 548359), (589, 444087), (651, 401793), (931, 280953), (1007, 259749), (1083, 241521), (1113, 235011), (1197, 218519), (1519, 172197), (1643, 159201), (1767, 148029), (1953, 133931), (2527, 103509), (2597, 100719), (2793, 93651), (3021, 86583), (3249, 80507), (3339, 78337), (4123, 63441), (4557, 57399), (4929, 53067), (5301, 49343), (7049, 37107), (7581, 34503), (7791, 33573), (8379, 31217), (9063, 28861), (11191, 23373), (11501, 22743), (12369, 21147), (13671, 19133), (14787, 17689)]