211775991

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{13217}}^1$

素因数の和:13343

約数の個数: 24

約数和(自身を含む): 331507440

約数和(自身を除く): 119731449

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 13217, 16023, 39651, 92519, 277557, 647633, 1440653, 1942899, 4321959, 10084571, 30253713, 70591997, 211775991]

約数ペア:

[(1, 211775991), (3, 70591997), (7, 30253713), (21, 10084571), (49, 4321959), (109, 1942899), (147, 1440653), (327, 647633), (763, 277557), (2289, 92519), (5341, 39651), (13217, 16023)]