20389336

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1039}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 41932800

約数和(自身を除く): 21543464

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 223, 446, 892, 1039, 1784, 2078, 2453, 4156, 4906, 8312, 9812, 11429, 19624, 22858, 45716, 91432, 231697, 463394, 926788, 1853576, 2548667, 5097334, 10194668, 20389336]

約数ペア:

[(1, 20389336), (2, 10194668), (4, 5097334), (8, 2548667), (11, 1853576), (22, 926788), (44, 463394), (88, 231697), (223, 91432), (446, 45716), (892, 22858), (1039, 19624), (1784, 11429), (2078, 9812), (2453, 8312), (4156, 4906)]