21728128

素因数分解:

$2^7\times {\mathrm{169751}}^1$

素因数の和:169765

約数の個数: 16

約数和(自身を含む): 43286760

約数和(自身を除く): 21558632

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 169751, 339502, 679004, 1358008, 2716016, 5432032, 10864064, 21728128]

約数ペア:

[(1, 21728128), (2, 10864064), (4, 5432032), (8, 2716016), (16, 1358008), (32, 679004), (64, 339502), (128, 169751)]