20930871

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7559}}^1$

素因数の和:7646

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9551049

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7559, 22677, 98267, 294801, 536689, 1610067, 6976957, 20930871]

約数ペア:

[(1, 20930871), (3, 6976957), (13, 1610067), (39, 536689), (71, 294801), (213, 98267), (923, 22677), (2769, 7559)]