12054721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 14601600

約数和(自身を除く): 2546879

約数列:

[1, 7, 19, 133, 233, 389, 1631, 2723, 4427, 7391, 30989, 51737, 90637, 634459, 1722103, 12054721]

約数ペア:

[(1, 12054721), (7, 1722103), (19, 634459), (133, 90637), (233, 51737), (389, 30989), (1631, 7391), (2723, 4427)]