2520639

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 4402944

約数和(自身を除く): 1882305

約数列:

[1, 3, 9, 11, 23, 27, 33, 41, 69, 81, 99, 123, 207, 243, 253, 297, 369, 451, 621, 759, 891, 943, 1107, 1353, 1863, 2277, 2673, 2829, 3321, 4059, 5589, 6831, 8487, 9963, 10373, 12177, 20493, 25461, 31119, 36531, 61479, 76383, 93357, 109593, 229149, 280071, 840213, 2520639]

約数ペア:

[(1, 2520639), (3, 840213), (9, 280071), (11, 229149), (23, 109593), (27, 93357), (33, 76383), (41, 61479), (69, 36531), (81, 31119), (99, 25461), (123, 20493), (207, 12177), (243, 10373), (253, 9963), (297, 8487), (369, 6831), (451, 5589), (621, 4059), (759, 3321), (891, 2829), (943, 2673), (1107, 2277), (1353, 1863)]