13138139

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{571}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 15924480

約数和(自身を除く): 2786341

約数列:

[1, 7, 19, 133, 173, 571, 1211, 3287, 3997, 10849, 23009, 75943, 98783, 691481, 1876877, 13138139]

約数ペア:

[(1, 13138139), (7, 1876877), (19, 691481), (133, 98783), (173, 75943), (571, 23009), (1211, 10849), (3287, 3997)]