19982006

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{22153}}^1$

素因数の和:22207

約数の個数: 16

約数和(自身を含む): 33496848

約数和(自身を除く): 13514842

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 22153, 44306, 243683, 487366, 908273, 1816546, 9991003, 19982006]

約数ペア:

[(1, 19982006), (2, 9991003), (11, 1816546), (22, 908273), (41, 487366), (82, 243683), (451, 44306), (902, 22153)]