21677558

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17202442

約数列:

[1, 2, 7, 14, 29, 58, 107, 203, 214, 406, 499, 749, 998, 1498, 3103, 3493, 6206, 6986, 14471, 21721, 28942, 43442, 53393, 101297, 106786, 202594, 373751, 747502, 1548397, 3096794, 10838779, 21677558]

約数ペア:

[(1, 21677558), (2, 10838779), (7, 3096794), (14, 1548397), (29, 747502), (58, 373751), (107, 202594), (203, 106786), (214, 101297), (406, 53393), (499, 43442), (749, 28942), (998, 21721), (1498, 14471), (3103, 6986), (3493, 6206)]