2787813

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 5166720

約数和(自身を除く): 2378907

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 137, 153, 171, 323, 357, 399, 411, 959, 969, 1071, 1197, 1233, 2261, 2329, 2603, 2877, 2907, 6783, 6987, 7809, 8631, 16303, 18221, 20349, 20961, 23427, 44251, 48909, 54663, 132753, 146727, 163989, 309757, 398259, 929271, 2787813]

約数ペア:

[(1, 2787813), (3, 929271), (7, 398259), (9, 309757), (17, 163989), (19, 146727), (21, 132753), (51, 54663), (57, 48909), (63, 44251), (119, 23427), (133, 20961), (137, 20349), (153, 18221), (171, 16303), (323, 8631), (357, 7809), (399, 6987), (411, 6783), (959, 2907), (969, 2877), (1071, 2603), (1197, 2329), (1233, 2261)]