20539851

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2731}}^1$

素因数の和:2866

約数の個数: 16

約数和(自身を含む): 28849920

約数和(自身を除く): 8310069

約数列:

[1, 3, 23, 69, 109, 327, 2507, 2731, 7521, 8193, 62813, 188439, 297679, 893037, 6846617, 20539851]

約数ペア:

[(1, 20539851), (3, 6846617), (23, 893037), (69, 297679), (109, 188439), (327, 62813), (2507, 8193), (2731, 7521)]