21496576

素因数分解:

$2^8\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:788

約数の個数: 36

約数和(自身を含む): 43304184

約数和(自身を除く): 21807608

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 256, 262, 524, 641, 1048, 1282, 2096, 2564, 4192, 5128, 8384, 10256, 16768, 20512, 33536, 41024, 82048, 83971, 164096, 167942, 335884, 671768, 1343536, 2687072, 5374144, 10748288, 21496576]

約数ペア:

[(1, 21496576), (2, 10748288), (4, 5374144), (8, 2687072), (16, 1343536), (32, 671768), (64, 335884), (128, 167942), (131, 164096), (256, 83971), (262, 82048), (524, 41024), (641, 33536), (1048, 20512), (1282, 16768), (2096, 10256), (2564, 8384), (4192, 5128)]