18854973

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1553}}^1$

素因数の和:1649

約数の個数: 24

約数和(自身を含む): 29090880

約数和(自身を除く): 10235907

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 1553, 4047, 4659, 12141, 13977, 29507, 88521, 110263, 265563, 330789, 992367, 2094997, 6284991, 18854973]

約数ペア:

[(1, 18854973), (3, 6284991), (9, 2094997), (19, 992367), (57, 330789), (71, 265563), (171, 110263), (213, 88521), (639, 29507), (1349, 13977), (1553, 12141), (4047, 4659)]