19997156

素因数分解:

$2^2\times {\mathrm{1063}}^1\times {\mathrm{4703}}^1$

素因数の和:5770

約数の個数: 12

約数和(自身を含む): 35035392

約数和(自身を除く): 15038236

約数列:

[1, 2, 4, 1063, 2126, 4252, 4703, 9406, 18812, 4999289, 9998578, 19997156]

約数ペア:

[(1, 19997156), (2, 9998578), (4, 4999289), (1063, 18812), (2126, 9406), (4252, 4703)]