28891428

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{17321}}^1$

素因数の和:17467

約数の個数: 24

約数和(自身を含む): 67902240

約数和(自身を除く): 39010812

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 17321, 34642, 51963, 69284, 103926, 207852, 2407619, 4815238, 7222857, 9630476, 14445714, 28891428]

約数ペア:

[(1, 28891428), (2, 14445714), (3, 9630476), (4, 7222857), (6, 4815238), (12, 2407619), (139, 207852), (278, 103926), (417, 69284), (556, 51963), (834, 34642), (1668, 17321)]