20844784

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12899}}^1$

素因数の和:13008

約数の個数: 20

約数和(自身を含む): 40789800

約数和(自身を除く): 19945016

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12899, 25798, 51596, 103192, 206384, 1302799, 2605598, 5211196, 10422392, 20844784]

約数ペア:

[(1, 20844784), (2, 10422392), (4, 5211196), (8, 2605598), (16, 1302799), (101, 206384), (202, 103192), (404, 51596), (808, 25798), (1616, 12899)]