212211

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 346320

約数和(自身を除く): 134109

約数列:

[1, 3, 9, 17, 19, 51, 57, 73, 153, 171, 219, 323, 657, 969, 1241, 1387, 2907, 3723, 4161, 11169, 12483, 23579, 70737, 212211]

約数ペア:

[(1, 212211), (3, 70737), (9, 23579), (17, 12483), (19, 11169), (51, 4161), (57, 3723), (73, 2907), (153, 1387), (171, 1241), (219, 969), (323, 657)]