19909864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191441}}^1$

素因数の和:191460

約数の個数: 16

約数和(自身を含む): 40202820

約数和(自身を除く): 20292956

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191441, 382882, 765764, 1531528, 2488733, 4977466, 9954932, 19909864]

約数ペア:

[(1, 19909864), (2, 9954932), (4, 4977466), (8, 2488733), (13, 1531528), (26, 765764), (52, 382882), (104, 191441)]