12990861

素因数分解:

$3^4\times {\mathrm{13}}^3\times {\mathrm{73}}^1$

素因数の和:124

約数の個数: 40

約数和(自身を含む): 21310520

約数和(自身を除く): 8319659

約数列:

[1, 3, 9, 13, 27, 39, 73, 81, 117, 169, 219, 351, 507, 657, 949, 1053, 1521, 1971, 2197, 2847, 4563, 5913, 6591, 8541, 12337, 13689, 19773, 25623, 37011, 59319, 76869, 111033, 160381, 177957, 333099, 481143, 999297, 1443429, 4330287, 12990861]

約数ペア:

[(1, 12990861), (3, 4330287), (9, 1443429), (13, 999297), (27, 481143), (39, 333099), (73, 177957), (81, 160381), (117, 111033), (169, 76869), (219, 59319), (351, 37011), (507, 25623), (657, 19773), (949, 13689), (1053, 12337), (1521, 8541), (1971, 6591), (2197, 5913), (2847, 4563)]