28678916

素因数分解:

$2^2\times 7^3\times {\mathrm{20903}}^1$

素因数の和:20928

約数の個数: 24

約数和(自身を含む): 58531200

約数和(自身を除く): 29852284

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 20903, 41806, 83612, 146321, 292642, 585284, 1024247, 2048494, 4096988, 7169729, 14339458, 28678916]

約数ペア:

[(1, 28678916), (2, 14339458), (4, 7169729), (7, 4096988), (14, 2048494), (28, 1024247), (49, 585284), (98, 292642), (196, 146321), (343, 83612), (686, 41806), (1372, 20903)]