20820616

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19867}}^1$

素因数の和:20004

約数の個数: 16

約数和(自身を含む): 39338640

約数和(自身を除く): 18518024

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19867, 39734, 79468, 158936, 2602577, 5205154, 10410308, 20820616]

約数ペア:

[(1, 20820616), (2, 10410308), (4, 5205154), (8, 2602577), (131, 158936), (262, 79468), (524, 39734), (1048, 19867)]