21188608

素因数分解:

$2^{12}\times 7^1\times {\mathrm{739}}^1$

素因数の和:770

約数の個数: 52

約数和(自身を含む): 48490720

約数和(自身を除く): 27302112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 739, 896, 1024, 1478, 1792, 2048, 2956, 3584, 4096, 5173, 5912, 7168, 10346, 11824, 14336, 20692, 23648, 28672, 41384, 47296, 82768, 94592, 165536, 189184, 331072, 378368, 662144, 756736, 1324288, 1513472, 2648576, 3026944, 5297152, 10594304, 21188608]

約数ペア:

[(1, 21188608), (2, 10594304), (4, 5297152), (7, 3026944), (8, 2648576), (14, 1513472), (16, 1324288), (28, 756736), (32, 662144), (56, 378368), (64, 331072), (112, 189184), (128, 165536), (224, 94592), (256, 82768), (448, 47296), (512, 41384), (739, 28672), (896, 23648), (1024, 20692), (1478, 14336), (1792, 11824), (2048, 10346), (2956, 7168), (3584, 5912), (4096, 5173)]