30900807

素因数分解:

$3^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{859}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 51159680

約数和(自身を除く): 20258873

約数列:

[1, 3, 7, 9, 21, 63, 571, 859, 1713, 2577, 3997, 5139, 6013, 7731, 11991, 18039, 35973, 54117, 490489, 1471467, 3433423, 4414401, 10300269, 30900807]

約数ペア:

[(1, 30900807), (3, 10300269), (7, 4414401), (9, 3433423), (21, 1471467), (63, 490489), (571, 54117), (859, 35973), (1713, 18039), (2577, 11991), (3997, 7731), (5139, 6013)]