20347071423

素因数分解:

$3^1\times 7^1\times {\mathrm{2131}}^1\times {\mathrm{454673}}^1$

素因数の和:456814

約数の個数: 16

約数和(自身を含む): 31019678976

約数和(自身を除く): 10672607553

約数列:

[1, 3, 7, 21, 2131, 6393, 14917, 44751, 454673, 1364019, 3182711, 9548133, 968908163, 2906724489, 6782357141, 20347071423]

約数ペア:

[(1, 20347071423), (3, 6782357141), (7, 2906724489), (21, 968908163), (2131, 9548133), (6393, 3182711), (14917, 1364019), (44751, 454673)]