21576368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2851}}^1$

素因数の和:2913

約数の個数: 40

約数和(自身を含む): 46681536

約数和(自身を除く): 25105168

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2851, 3784, 5702, 7568, 11404, 22808, 31361, 45616, 62722, 122593, 125444, 245186, 250888, 490372, 501776, 980744, 1348523, 1961488, 2697046, 5394092, 10788184, 21576368]

約数ペア:

[(1, 21576368), (2, 10788184), (4, 5394092), (8, 2697046), (11, 1961488), (16, 1348523), (22, 980744), (43, 501776), (44, 490372), (86, 250888), (88, 245186), (172, 125444), (176, 122593), (344, 62722), (473, 45616), (688, 31361), (946, 22808), (1892, 11404), (2851, 7568), (3784, 5702)]