19854865

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4211}}^1$

素因数の和:4280

約数の個数: 16

約数和(自身を含む): 25474176

約数和(自身を除く): 5619311

約数列:

[1, 5, 23, 41, 115, 205, 943, 4211, 4715, 21055, 96853, 172651, 484265, 863255, 3970973, 19854865]

約数ペア:

[(1, 19854865), (5, 3970973), (23, 863255), (41, 484265), (115, 172651), (205, 96853), (943, 21055), (4211, 4715)]