20145591

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{3407}}^1$

素因数の和:3492

約数の個数: 20

約数和(自身を含む): 30515232

約数和(自身を除く): 10369641

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 3407, 5913, 10221, 30663, 91989, 248711, 275967, 746133, 2238399, 6715197, 20145591]

約数ペア:

[(1, 20145591), (3, 6715197), (9, 2238399), (27, 746133), (73, 275967), (81, 248711), (219, 91989), (657, 30663), (1971, 10221), (3407, 5913)]