28749154

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{19937}}^1$

素因数の和:20049

約数の個数: 16

約数和(自身を含む): 49765248

約数和(自身を除く): 21016094

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 19937, 39874, 139559, 279118, 2053511, 4107022, 14374577, 28749154]

約数ペア:

[(1, 28749154), (2, 14374577), (7, 4107022), (14, 2053511), (103, 279118), (206, 139559), (721, 39874), (1442, 19937)]