20778492

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247363}}^1$

素因数の和:247377

約数の個数: 24

約数和(自身を含む): 55409536

約数和(自身を除く): 34631044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247363, 494726, 742089, 989452, 1484178, 1731541, 2968356, 3463082, 5194623, 6926164, 10389246, 20778492]

約数ペア:

[(1, 20778492), (2, 10389246), (3, 6926164), (4, 5194623), (6, 3463082), (7, 2968356), (12, 1731541), (14, 1484178), (21, 989452), (28, 742089), (42, 494726), (84, 247363)]