11890557

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 20668736

約数和(自身を除く): 8778179

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 313, 469, 567, 603, 939, 1407, 1809, 2191, 2817, 4221, 5427, 6573, 8451, 12663, 19719, 20971, 25353, 37989, 59157, 62913, 146797, 177471, 188739, 440391, 566217, 1321173, 1698651, 3963519, 11890557]

約数ペア:

[(1, 11890557), (3, 3963519), (7, 1698651), (9, 1321173), (21, 566217), (27, 440391), (63, 188739), (67, 177471), (81, 146797), (189, 62913), (201, 59157), (313, 37989), (469, 25353), (567, 20971), (603, 19719), (939, 12663), (1407, 8451), (1809, 6573), (2191, 5427), (2817, 4221)]