20434519

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{467}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 25608960

約数和(自身を除く): 5174441

約数列:

[1, 7, 19, 47, 49, 133, 329, 467, 893, 931, 2303, 3269, 6251, 8873, 21949, 22883, 43757, 62111, 153643, 417031, 434777, 1075501, 2919217, 20434519]

約数ペア:

[(1, 20434519), (7, 2919217), (19, 1075501), (47, 434777), (49, 417031), (133, 153643), (329, 62111), (467, 43757), (893, 22883), (931, 21949), (2303, 8873), (3269, 6251)]