12871859

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 17830512

約数和(自身を除く): 4958653

約数列:

[1, 7, 11, 13, 49, 77, 91, 121, 143, 167, 539, 637, 847, 1001, 1169, 1573, 1837, 2171, 5929, 7007, 8183, 11011, 12859, 15197, 20207, 23881, 77077, 90013, 106379, 141449, 167167, 262691, 990143, 1170169, 1838837, 12871859]

約数ペア:

[(1, 12871859), (7, 1838837), (11, 1170169), (13, 990143), (49, 262691), (77, 167167), (91, 141449), (121, 106379), (143, 90013), (167, 77077), (539, 23881), (637, 20207), (847, 15197), (1001, 12859), (1169, 11011), (1573, 8183), (1837, 7007), (2171, 5929)]