21799557

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 13278843

約数列:

[1, 3, 9, 13, 27, 39, 117, 173, 351, 359, 519, 1077, 1557, 2249, 3231, 4667, 4671, 6747, 9693, 14001, 20241, 42003, 60723, 62107, 126009, 186321, 558963, 807391, 1676889, 2422173, 7266519, 21799557]

約数ペア:

[(1, 21799557), (3, 7266519), (9, 2422173), (13, 1676889), (27, 807391), (39, 558963), (117, 186321), (173, 126009), (351, 62107), (359, 60723), (519, 42003), (1077, 20241), (1557, 14001), (2249, 9693), (3231, 6747), (4667, 4671)]