20694016

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2887}}^1$

素因数の和:2914

約数の個数: 44

約数和(自身を含む): 47293888

約数和(自身を除く): 26599872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2887, 3584, 5774, 7168, 11548, 20209, 23096, 40418, 46192, 80836, 92384, 161672, 184768, 323344, 369536, 646688, 739072, 1293376, 1478144, 2586752, 2956288, 5173504, 10347008, 20694016]

約数ペア:

[(1, 20694016), (2, 10347008), (4, 5173504), (7, 2956288), (8, 2586752), (14, 1478144), (16, 1293376), (28, 739072), (32, 646688), (56, 369536), (64, 323344), (112, 184768), (128, 161672), (224, 92384), (256, 80836), (448, 46192), (512, 40418), (896, 23096), (1024, 20209), (1792, 11548), (2887, 7168), (3584, 5774)]