21739894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{2063}}^1$

素因数の和:2555

約数の個数: 16

約数和(自身を含む): 35665920

約数和(自身を除く): 13926026

約数列:

[1, 2, 11, 22, 479, 958, 2063, 4126, 5269, 10538, 22693, 45386, 988177, 1976354, 10869947, 21739894]

約数ペア:

[(1, 21739894), (2, 10869947), (11, 1976354), (22, 988177), (479, 45386), (958, 22693), (2063, 10538), (4126, 5269)]