208538781687

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{2789}}^1\times {\mathrm{64403}}^1$

素因数の和:67244

約数の個数: 32

約数和(自身を含む): 316249401600

約数和(自身を除く): 107710619913

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 2789, 8367, 25101, 64403, 75303, 119927, 193209, 359781, 579627, 1079343, 1738881, 2769329, 3238029, 8307987, 24923961, 74771883, 179619967, 538859901, 1616579703, 4849739109, 7723658581, 23170975743, 69512927229, 208538781687]

約数ペア:

[(1, 208538781687), (3, 69512927229), (9, 23170975743), (27, 7723658581), (43, 4849739109), (129, 1616579703), (387, 538859901), (1161, 179619967), (2789, 74771883), (8367, 24923961), (25101, 8307987), (64403, 3238029), (75303, 2769329), (119927, 1738881), (193209, 1079343), (359781, 579627)]