20572816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2851}}^1$

素因数の和:2911

約数の個数: 40

約数和(自身を含む): 44559648

約数和(自身を除く): 23986832

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2851, 3608, 5702, 7216, 11404, 22808, 31361, 45616, 62722, 116891, 125444, 233782, 250888, 467564, 501776, 935128, 1285801, 1870256, 2571602, 5143204, 10286408, 20572816]

約数ペア:

[(1, 20572816), (2, 10286408), (4, 5143204), (8, 2571602), (11, 1870256), (16, 1285801), (22, 935128), (41, 501776), (44, 467564), (82, 250888), (88, 233782), (164, 125444), (176, 116891), (328, 62722), (451, 45616), (656, 31361), (902, 22808), (1804, 11404), (2851, 7216), (3608, 5702)]