21430047

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{3023}}^1$

素因数の和:3182

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9051873

約数列:

[1, 3, 17, 51, 139, 417, 2363, 3023, 7089, 9069, 51391, 154173, 420197, 1260591, 7143349, 21430047]

約数ペア:

[(1, 21430047), (3, 7143349), (17, 1260591), (51, 420197), (139, 154173), (417, 51391), (2363, 9069), (3023, 7089)]