21288128

素因数分解:

$2^6\times {\mathrm{139}}^1\times {\mathrm{2393}}^1$

素因数の和:2544

約数の個数: 28

約数和(自身を含む): 42565320

約数和(自身を除く): 21277192

約数列:

[1, 2, 4, 8, 16, 32, 64, 139, 278, 556, 1112, 2224, 2393, 4448, 4786, 8896, 9572, 19144, 38288, 76576, 153152, 332627, 665254, 1330508, 2661016, 5322032, 10644064, 21288128]

約数ペア:

[(1, 21288128), (2, 10644064), (4, 5322032), (8, 2661016), (16, 1330508), (32, 665254), (64, 332627), (139, 153152), (278, 76576), (556, 38288), (1112, 19144), (2224, 9572), (2393, 8896), (4448, 4786)]