21890583

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 37818144

約数和(自身を除く): 15927561

約数列:

[1, 3, 9, 11, 13, 33, 39, 73, 99, 117, 143, 219, 233, 429, 657, 699, 803, 949, 1287, 2097, 2409, 2563, 2847, 3029, 7227, 7689, 8541, 9087, 10439, 17009, 23067, 27261, 31317, 33319, 51027, 93951, 99957, 153081, 187099, 221117, 299871, 561297, 663351, 1683891, 1990053, 2432287, 7296861, 21890583]

約数ペア:

[(1, 21890583), (3, 7296861), (9, 2432287), (11, 1990053), (13, 1683891), (33, 663351), (39, 561297), (73, 299871), (99, 221117), (117, 187099), (143, 153081), (219, 99957), (233, 93951), (429, 51027), (657, 33319), (699, 31317), (803, 27261), (949, 23067), (1287, 17009), (2097, 10439), (2409, 9087), (2563, 8541), (2847, 7689), (3029, 7227)]