18323991

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1180

約数の個数: 36

約数和(自身を含む): 31649592

約数和(自身を除く): 13325601

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 259, 333, 441, 777, 1123, 1813, 2331, 3369, 5439, 7861, 10107, 16317, 23583, 41551, 55027, 70749, 124653, 165081, 290857, 373959, 495243, 872571, 2035999, 2617713, 6107997, 18323991]

約数ペア:

[(1, 18323991), (3, 6107997), (7, 2617713), (9, 2035999), (21, 872571), (37, 495243), (49, 373959), (63, 290857), (111, 165081), (147, 124653), (259, 70749), (333, 55027), (441, 41551), (777, 23583), (1123, 16317), (1813, 10107), (2331, 7861), (3369, 5439)]