209212087

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 256425984

約数和(自身を除く): 47213897

約数列:

[1, 7, 31, 47, 73, 217, 281, 329, 511, 1457, 1967, 2263, 3431, 8711, 10199, 13207, 15841, 20513, 24017, 60977, 92449, 106361, 143591, 409417, 635903, 744527, 964111, 2865919, 4451321, 6748777, 29887441, 209212087]

約数ペア:

[(1, 209212087), (7, 29887441), (31, 6748777), (47, 4451321), (73, 2865919), (217, 964111), (281, 744527), (329, 635903), (511, 409417), (1457, 143591), (1967, 106361), (2263, 92449), (3431, 60977), (8711, 24017), (10199, 20513), (13207, 15841)]