20556808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{151153}}^1$

素因数の和:151176

約数の個数: 16

約数和(自身を含む): 40811580

約数和(自身を除く): 20254772

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 151153, 302306, 604612, 1209224, 2569601, 5139202, 10278404, 20556808]

約数ペア:

[(1, 20556808), (2, 10278404), (4, 5139202), (8, 2569601), (17, 1209224), (34, 604612), (68, 302306), (136, 151153)]