28420528

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{21401}}^1$

素因数の和:21492

約数の個数: 20

約数和(自身を含む): 55730808

約数和(自身を除く): 27310280

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 21401, 42802, 85604, 171208, 342416, 1776283, 3552566, 7105132, 14210264, 28420528]

約数ペア:

[(1, 28420528), (2, 14210264), (4, 7105132), (8, 3552566), (16, 1776283), (83, 342416), (166, 171208), (332, 85604), (664, 42802), (1328, 21401)]