19911994

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{5077}}^1$

素因数の和:5169

約数の個数: 16

約数和(自身を含む): 31260168

約数和(自身を除く): 11348174

約数列:

[1, 2, 37, 53, 74, 106, 1961, 3922, 5077, 10154, 187849, 269081, 375698, 538162, 9955997, 19911994]

約数ペア:

[(1, 19911994), (2, 9955997), (37, 538162), (53, 375698), (74, 269081), (106, 187849), (1961, 10154), (3922, 5077)]