20464912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98389}}^1$

素因数の和:98410

約数の個数: 20

約数和(自身を含む): 42701260

約数和(自身を除く): 22236348

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98389, 196778, 393556, 787112, 1279057, 1574224, 2558114, 5116228, 10232456, 20464912]

約数ペア:

[(1, 20464912), (2, 10232456), (4, 5116228), (8, 2558114), (13, 1574224), (16, 1279057), (26, 787112), (52, 393556), (104, 196778), (208, 98389)]