19943288

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{3877}}^1$

素因数の和:4526

約数の個数: 16

約数和(自身を含む): 37461480

約数和(自身を除く): 17518192

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 3877, 5144, 7754, 15508, 31016, 2492911, 4985822, 9971644, 19943288]

約数ペア:

[(1, 19943288), (2, 9971644), (4, 4985822), (8, 2492911), (643, 31016), (1286, 15508), (2572, 7754), (3877, 5144)]