51138297

素因数分解:

$3^4\times 7^1\times {\mathrm{90191}}^1$

素因数の和:90210

約数の個数: 20

約数和(自身を含む): 87305856

約数和(自身を除く): 36167559

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 90191, 270573, 631337, 811719, 1894011, 2435157, 5682033, 7305471, 17046099, 51138297]

約数ペア:

[(1, 51138297), (3, 17046099), (7, 7305471), (9, 5682033), (21, 2435157), (27, 1894011), (63, 811719), (81, 631337), (189, 270573), (567, 90191)]