20663416

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19717}}^1$

素因数の和:19854

約数の個数: 16

約数和(自身を含む): 39041640

約数和(自身を除く): 18378224

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19717, 39434, 78868, 157736, 2582927, 5165854, 10331708, 20663416]

約数ペア:

[(1, 20663416), (2, 10331708), (4, 5165854), (8, 2582927), (131, 157736), (262, 78868), (524, 39434), (1048, 19717)]