27951021

素因数分解:

$3^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 49558080

約数和(自身を除く): 21607059

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 111, 147, 189, 259, 333, 441, 571, 777, 999, 1323, 1713, 1813, 2331, 3997, 5139, 5439, 6993, 11991, 15417, 16317, 21127, 27979, 35973, 48951, 63381, 83937, 107919, 147889, 190143, 251811, 443667, 570429, 755433, 1035223, 1331001, 3105669, 3993003, 9317007, 27951021]

約数ペア:

[(1, 27951021), (3, 9317007), (7, 3993003), (9, 3105669), (21, 1331001), (27, 1035223), (37, 755433), (49, 570429), (63, 443667), (111, 251811), (147, 190143), (189, 147889), (259, 107919), (333, 83937), (441, 63381), (571, 48951), (777, 35973), (999, 27979), (1323, 21127), (1713, 16317), (1813, 15417), (2331, 11991), (3997, 6993), (5139, 5439)]