2809161

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:530

約数の個数: 20

約数和(自身を含む): 4259200

約数和(自身を除く): 1450039

約数列:

[1, 3, 9, 27, 79, 81, 237, 439, 711, 1317, 2133, 3951, 6399, 11853, 34681, 35559, 104043, 312129, 936387, 2809161]

約数ペア:

[(1, 2809161), (3, 936387), (9, 312129), (27, 104043), (79, 35559), (81, 34681), (237, 11853), (439, 6399), (711, 3951), (1317, 2133)]