211671981

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{27127}}^1$

素因数の和:27170

約数の個数: 24

約数和(自身を含む): 333131840

約数和(自身を除く): 121459859

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2601, 7803, 27127, 81381, 244143, 461159, 732429, 1383477, 4150431, 7839703, 12451293, 23519109, 70557327, 211671981]

約数ペア:

[(1, 211671981), (3, 70557327), (9, 23519109), (17, 12451293), (27, 7839703), (51, 4150431), (153, 1383477), (289, 732429), (459, 461159), (867, 244143), (2601, 81381), (7803, 27127)]