21781254

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{330019}}^1$

素因数の和:330035

約数の個数: 16

約数和(自身を含む): 47522880

約数和(自身を除く): 25741626

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 330019, 660038, 990057, 1980114, 3630209, 7260418, 10890627, 21781254]

約数ペア:

[(1, 21781254), (2, 10890627), (3, 7260418), (6, 3630209), (11, 1980114), (22, 990057), (33, 660038), (66, 330019)]