1687797

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:390

約数の個数: 20

約数和(自身を含む): 2567136

約数和(自身を除く): 879339

約数列:

[1, 3, 9, 27, 67, 81, 201, 311, 603, 933, 1809, 2799, 5427, 8397, 20837, 25191, 62511, 187533, 562599, 1687797]

約数ペア:

[(1, 1687797), (3, 562599), (9, 187533), (27, 62511), (67, 25191), (81, 20837), (201, 8397), (311, 5427), (603, 2799), (933, 1809)]