1277721

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1325

約数の個数: 16

約数和(自身を含む): 1945600

約数和(自身を除く): 667879

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 1279, 3837, 11511, 34533, 47323, 141969, 425907, 1277721]

約数ペア:

[(1, 1277721), (3, 425907), (9, 141969), (27, 47323), (37, 34533), (111, 11511), (333, 3837), (999, 1279)]