20648172

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12379}}^1$

素因数の和:12525

約数の個数: 24

約数和(自身を含む): 48529600

約数和(自身を除く): 27881428

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12379, 24758, 37137, 49516, 74274, 148548, 1720681, 3441362, 5162043, 6882724, 10324086, 20648172]

約数ペア:

[(1, 20648172), (2, 10324086), (3, 6882724), (4, 5162043), (6, 3441362), (12, 1720681), (139, 148548), (278, 74274), (417, 49516), (556, 37137), (834, 24758), (1668, 12379)]