20513912

素因数分解:

$2^3\times {\mathrm{449}}^1\times {\mathrm{5711}}^1$

素因数の和:6166

約数の個数: 16

約数和(自身を含む): 38556000

約数和(自身を除く): 18042088

約数列:

[1, 2, 4, 8, 449, 898, 1796, 3592, 5711, 11422, 22844, 45688, 2564239, 5128478, 10256956, 20513912]

約数ペア:

[(1, 20513912), (2, 10256956), (4, 5128478), (8, 2564239), (449, 45688), (898, 22844), (1796, 11422), (3592, 5711)]