20118578

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{769}}^1$

素因数の和:1001

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 10632142

約数列:

[1, 2, 103, 127, 206, 254, 769, 1538, 13081, 26162, 79207, 97663, 158414, 195326, 10059289, 20118578]

約数ペア:

[(1, 20118578), (2, 10059289), (103, 195326), (127, 158414), (206, 97663), (254, 79207), (769, 26162), (1538, 13081)]