20571591

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{673}}^1$

素因数の和:1142

約数の個数: 16

約数和(自身を含む): 28728576

約数和(自身を除く): 8156985

約数列:

[1, 3, 23, 69, 443, 673, 1329, 2019, 10189, 15479, 30567, 46437, 298139, 894417, 6857197, 20571591]

約数ペア:

[(1, 20571591), (3, 6857197), (23, 894417), (69, 298139), (443, 46437), (673, 30567), (1329, 15479), (2019, 10189)]