18919439

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{3191}}^1$

素因数の和:3227

約数の個数: 18

約数和(自身を含む): 24198552

約数和(自身を除く): 5279113

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 3191, 5929, 22337, 35101, 156359, 245707, 386111, 1719949, 2702777, 18919439]

約数ペア:

[(1, 18919439), (7, 2702777), (11, 1719949), (49, 386111), (77, 245707), (121, 156359), (539, 35101), (847, 22337), (3191, 5929)]