21490722

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{349}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 51105600

約数和(自身を除く): 29614878

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 311, 349, 622, 698, 933, 1047, 1866, 2094, 2799, 3141, 3421, 3839, 5598, 6282, 6842, 7678, 10263, 11517, 20526, 23034, 30789, 34551, 61578, 69102, 108539, 217078, 325617, 651234, 976851, 1193929, 1953702, 2387858, 3581787, 7163574, 10745361, 21490722]

約数ペア:

[(1, 21490722), (2, 10745361), (3, 7163574), (6, 3581787), (9, 2387858), (11, 1953702), (18, 1193929), (22, 976851), (33, 651234), (66, 325617), (99, 217078), (198, 108539), (311, 69102), (349, 61578), (622, 34551), (698, 30789), (933, 23034), (1047, 20526), (1866, 11517), (2094, 10263), (2799, 7678), (3141, 6842), (3421, 6282), (3839, 5598)]