25906167

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 44698368

約数和(自身を除く): 18792201

約数列:

[1, 3, 7, 9, 21, 43, 63, 73, 129, 131, 219, 301, 387, 393, 511, 657, 903, 917, 1179, 1533, 2709, 2751, 3139, 4599, 5633, 8253, 9417, 9563, 16899, 21973, 28251, 28689, 39431, 50697, 65919, 66941, 86067, 118293, 197757, 200823, 354879, 411209, 602469, 1233627, 2878463, 3700881, 8635389, 25906167]

約数ペア:

[(1, 25906167), (3, 8635389), (7, 3700881), (9, 2878463), (21, 1233627), (43, 602469), (63, 411209), (73, 354879), (129, 200823), (131, 197757), (219, 118293), (301, 86067), (387, 66941), (393, 65919), (511, 50697), (657, 39431), (903, 28689), (917, 28251), (1179, 21973), (1533, 16899), (2709, 9563), (2751, 9417), (3139, 8253), (4599, 5633)]