20840664

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66797}}^1$

素因数の和:66819

約数の個数: 32

約数和(自身を含む): 56110320

約数和(自身を除く): 35269656

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66797, 133594, 200391, 267188, 400782, 534376, 801564, 868361, 1603128, 1736722, 2605083, 3473444, 5210166, 6946888, 10420332, 20840664]

約数ペア:

[(1, 20840664), (2, 10420332), (3, 6946888), (4, 5210166), (6, 3473444), (8, 2605083), (12, 1736722), (13, 1603128), (24, 868361), (26, 801564), (39, 534376), (52, 400782), (78, 267188), (104, 200391), (156, 133594), (312, 66797)]