21028768

素因数分解:

$2^5\times {\mathrm{257}}^1\times {\mathrm{2557}}^1$

素因数の和:2824

約数の個数: 24

約数和(自身を含む): 41577732

約数和(自身を除く): 20548964

約数列:

[1, 2, 4, 8, 16, 32, 257, 514, 1028, 2056, 2557, 4112, 5114, 8224, 10228, 20456, 40912, 81824, 657149, 1314298, 2628596, 5257192, 10514384, 21028768]

約数ペア:

[(1, 21028768), (2, 10514384), (4, 5257192), (8, 2628596), (16, 1314298), (32, 657149), (257, 81824), (514, 40912), (1028, 20456), (2056, 10228), (2557, 8224), (4112, 5114)]