18671222

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:727

約数の個数: 16

約数和(自身を含む): 28473120

約数和(自身を除く): 9801898

約数列:

[1, 2, 103, 206, 233, 389, 466, 778, 23999, 40067, 47998, 80134, 90637, 181274, 9335611, 18671222]

約数ペア:

[(1, 18671222), (2, 9335611), (103, 181274), (206, 90637), (233, 80134), (389, 47998), (466, 40067), (778, 23999)]