21856768

素因数分解:

$2^9\times {\mathrm{42689}}^1$

素因数の和:42707

約数の個数: 20

約数和(自身を含む): 43671870

約数和(自身を除く): 21815102

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 42689, 85378, 170756, 341512, 683024, 1366048, 2732096, 5464192, 10928384, 21856768]

約数ペア:

[(1, 21856768), (2, 10928384), (4, 5464192), (8, 2732096), (16, 1366048), (32, 683024), (64, 341512), (128, 170756), (256, 85378), (512, 42689)]