21284864

素因数分解:

$2^{11}\times {\mathrm{19}}^1\times {\mathrm{547}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 44881200

約数和(自身を除く): 23596336

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 547, 608, 1024, 1094, 1216, 2048, 2188, 2432, 4376, 4864, 8752, 9728, 10393, 17504, 19456, 20786, 35008, 38912, 41572, 70016, 83144, 140032, 166288, 280064, 332576, 560128, 665152, 1120256, 1330304, 2660608, 5321216, 10642432, 21284864]

約数ペア:

[(1, 21284864), (2, 10642432), (4, 5321216), (8, 2660608), (16, 1330304), (19, 1120256), (32, 665152), (38, 560128), (64, 332576), (76, 280064), (128, 166288), (152, 140032), (256, 83144), (304, 70016), (512, 41572), (547, 38912), (608, 35008), (1024, 20786), (1094, 19456), (1216, 17504), (2048, 10393), (2188, 9728), (2432, 8752), (4376, 4864)]