20139489

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4751}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 30032640

約数和(自身を除く): 9893151

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4751, 14253, 42759, 128277, 745907, 2237721, 6713163, 20139489]

約数ペア:

[(1, 20139489), (3, 6713163), (9, 2237721), (27, 745907), (157, 128277), (471, 42759), (1413, 14253), (4239, 4751)]