19806591

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9157}}^1$

素因数の和:9270

約数の個数: 16

約数和(自身を含む): 30477824

約数和(自身を除く): 10671233

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9157, 27471, 64099, 192297, 943171, 2829513, 6602197, 19806591]

約数ペア:

[(1, 19806591), (3, 6602197), (7, 2829513), (21, 943171), (103, 192297), (309, 64099), (721, 27471), (2163, 9157)]