20843541

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:294

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11089899

約数列:

[1, 3, 9, 27, 71, 83, 131, 213, 249, 393, 639, 747, 1179, 1917, 2241, 3537, 5893, 9301, 10873, 17679, 27903, 32619, 53037, 83709, 97857, 159111, 251127, 293571, 771983, 2315949, 6947847, 20843541]

約数ペア:

[(1, 20843541), (3, 6947847), (9, 2315949), (27, 771983), (71, 293571), (83, 251127), (131, 159111), (213, 97857), (249, 83709), (393, 53037), (639, 32619), (747, 27903), (1179, 17679), (1917, 10873), (2241, 9301), (3537, 5893)]