20966144

素因数分解:

$2^8\times {\mathrm{81899}}^1$

素因数の和:81915

約数の個数: 18

約数和(自身を含む): 41850900

約数和(自身を除く): 20884756

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 81899, 163798, 327596, 655192, 1310384, 2620768, 5241536, 10483072, 20966144]

約数ペア:

[(1, 20966144), (2, 10483072), (4, 5241536), (8, 2620768), (16, 1310384), (32, 655192), (64, 327596), (128, 163798), (256, 81899)]