20479078

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{1117}}^1$

素因数の和:1311

約数の個数: 16

約数和(自身を含む): 31393440

約数和(自身を除く): 10914362

約数列:

[1, 2, 89, 103, 178, 206, 1117, 2234, 9167, 18334, 99413, 115051, 198826, 230102, 10239539, 20479078]

約数ペア:

[(1, 20479078), (2, 10239539), (89, 230102), (103, 198826), (178, 115051), (206, 99413), (1117, 18334), (2234, 9167)]