1688739

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 32

約数和(自身を含む): 2661120

約数和(自身を除く): 972381

約数列:

[1, 3, 13, 19, 39, 43, 53, 57, 129, 159, 247, 559, 689, 741, 817, 1007, 1677, 2067, 2279, 2451, 3021, 6837, 10621, 13091, 29627, 31863, 39273, 43301, 88881, 129903, 562913, 1688739]

約数ペア:

[(1, 1688739), (3, 562913), (13, 129903), (19, 88881), (39, 43301), (43, 39273), (53, 31863), (57, 29627), (129, 13091), (159, 10621), (247, 6837), (559, 3021), (689, 2451), (741, 2279), (817, 2067), (1007, 1677)]