7984389

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20011}}^1$

素因数の和:20040

約数の個数: 16

約数和(自身を含む): 12807680

約数和(自身を除く): 4823291

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 20011, 60033, 140077, 380209, 420231, 1140627, 2661463, 7984389]

約数ペア:

[(1, 7984389), (3, 2661463), (7, 1140627), (19, 420231), (21, 380209), (57, 140077), (133, 60033), (399, 20011)]