21961856

素因数分解:

$2^7\times 7^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 50657280

約数和(自身を除く): 28695424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 127, 128, 193, 224, 254, 386, 448, 508, 772, 889, 896, 1016, 1351, 1544, 1778, 2032, 2702, 3088, 3556, 4064, 5404, 6176, 7112, 8128, 10808, 12352, 14224, 16256, 21616, 24511, 24704, 28448, 43232, 49022, 56896, 86464, 98044, 113792, 171577, 172928, 196088, 343154, 392176, 686308, 784352, 1372616, 1568704, 2745232, 3137408, 5490464, 10980928, 21961856]

約数ペア:

[(1, 21961856), (2, 10980928), (4, 5490464), (7, 3137408), (8, 2745232), (14, 1568704), (16, 1372616), (28, 784352), (32, 686308), (56, 392176), (64, 343154), (112, 196088), (127, 172928), (128, 171577), (193, 113792), (224, 98044), (254, 86464), (386, 56896), (448, 49022), (508, 43232), (772, 28448), (889, 24704), (896, 24511), (1016, 21616), (1351, 16256), (1544, 14224), (1778, 12352), (2032, 10808), (2702, 8128), (3088, 7112), (3556, 6176), (4064, 5404)]