21090304

素因数分解:

$2^{12}\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:314

約数の個数: 52

約数和(自身を含む): 44559040

約数和(自身を除く): 23468736

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 271, 304, 512, 542, 608, 1024, 1084, 1216, 2048, 2168, 2432, 4096, 4336, 4864, 5149, 8672, 9728, 10298, 17344, 19456, 20596, 34688, 38912, 41192, 69376, 77824, 82384, 138752, 164768, 277504, 329536, 555008, 659072, 1110016, 1318144, 2636288, 5272576, 10545152, 21090304]

約数ペア:

[(1, 21090304), (2, 10545152), (4, 5272576), (8, 2636288), (16, 1318144), (19, 1110016), (32, 659072), (38, 555008), (64, 329536), (76, 277504), (128, 164768), (152, 138752), (256, 82384), (271, 77824), (304, 69376), (512, 41192), (542, 38912), (608, 34688), (1024, 20596), (1084, 19456), (1216, 17344), (2048, 10298), (2168, 9728), (2432, 8672), (4096, 5149), (4336, 4864)]