2581256881

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{90803}}^1$

素因数の和:90972

約数の個数: 16

約数和(自身を含む): 3068448768

約数和(自身を除く): 487191887

約数列:

[1, 7, 31, 131, 217, 917, 4061, 28427, 90803, 635621, 2814893, 11895193, 19704251, 83266351, 368750983, 2581256881]

約数ペア:

[(1, 2581256881), (7, 368750983), (31, 83266351), (131, 19704251), (217, 11895193), (917, 2814893), (4061, 635621), (28427, 90803)]