21406376

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{367}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 42128640

約数和(自身を除く): 20722264

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 317, 367, 634, 734, 1268, 1468, 2536, 2936, 7291, 8441, 14582, 16882, 29164, 33764, 58328, 67528, 116339, 232678, 465356, 930712, 2675797, 5351594, 10703188, 21406376]

約数ペア:

[(1, 21406376), (2, 10703188), (4, 5351594), (8, 2675797), (23, 930712), (46, 465356), (92, 232678), (184, 116339), (317, 67528), (367, 58328), (634, 33764), (734, 29164), (1268, 16882), (1468, 14582), (2536, 8441), (2936, 7291)]