20804964

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12473}}^1$

素因数の和:12619

約数の個数: 24

約数和(自身を含む): 48898080

約数和(自身を除く): 28093116

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12473, 24946, 37419, 49892, 74838, 149676, 1733747, 3467494, 5201241, 6934988, 10402482, 20804964]

約数ペア:

[(1, 20804964), (2, 10402482), (3, 6934988), (4, 5201241), (6, 3467494), (12, 1733747), (139, 149676), (278, 74838), (417, 49892), (556, 37419), (834, 24946), (1668, 12473)]