12985721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{599}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 15744000

約数和(自身を除く): 2758279

約数列:

[1, 7, 19, 133, 163, 599, 1141, 3097, 4193, 11381, 21679, 79667, 97637, 683459, 1855103, 12985721]

約数ペア:

[(1, 12985721), (7, 1855103), (19, 683459), (133, 97637), (163, 79667), (599, 21679), (1141, 11381), (3097, 4193)]