20406029

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{347}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 24231936

約数和(自身を除く): 3825907

約数列:

[1, 7, 31, 217, 271, 347, 1897, 2429, 8401, 10757, 58807, 75299, 94037, 658259, 2915147, 20406029]

約数ペア:

[(1, 20406029), (7, 2915147), (31, 658259), (217, 94037), (271, 75299), (347, 58807), (1897, 10757), (2429, 8401)]