20556968

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{82891}}^1$

素因数の和:82928

約数の個数: 16

約数和(自身を含む): 39788160

約数和(自身を除く): 19231192

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 82891, 165782, 331564, 663128, 2569621, 5139242, 10278484, 20556968]

約数ペア:

[(1, 20556968), (2, 10278484), (4, 5139242), (8, 2569621), (31, 663128), (62, 331564), (124, 165782), (248, 82891)]