18819139

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:498

約数の個数: 16

約数和(自身を含む): 20736000

約数和(自身を除く): 1916861

約数列:

[1, 19, 31, 89, 359, 589, 1691, 2759, 6821, 11129, 31951, 52421, 211451, 607069, 990481, 18819139]

約数ペア:

[(1, 18819139), (19, 990481), (31, 607069), (89, 211451), (359, 52421), (589, 31951), (1691, 11129), (2759, 6821)]