19847639

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{283}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 23392512

約数和(自身を除く): 3544873

約数列:

[1, 7, 43, 233, 283, 301, 1631, 1981, 10019, 12169, 65939, 70133, 85183, 461573, 2835377, 19847639]

約数ペア:

[(1, 19847639), (7, 2835377), (43, 461573), (233, 85183), (283, 70133), (301, 65939), (1631, 12169), (1981, 10019)]