398259

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 645840

約数和(自身を除く): 247581

約数列:

[1, 3, 9, 17, 19, 51, 57, 137, 153, 171, 323, 411, 969, 1233, 2329, 2603, 2907, 6987, 7809, 20961, 23427, 44251, 132753, 398259]

約数ペア:

[(1, 398259), (3, 132753), (9, 44251), (17, 23427), (19, 20961), (51, 7809), (57, 6987), (137, 2907), (153, 2603), (171, 2329), (323, 1233), (411, 969)]