17989979

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5881}}^1$

素因数の和:5930

約数の個数: 16

約数和(自身を含む): 22586880

約数和(自身を除く): 4596901

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 5881, 41167, 111739, 135263, 782173, 946841, 2569997, 17989979]

約数ペア:

[(1, 17989979), (7, 2569997), (19, 946841), (23, 782173), (133, 135263), (161, 111739), (437, 41167), (3059, 5881)]