20519379

素因数分解:

$3^3\times {\mathrm{499}}^1\times {\mathrm{1523}}^1$

素因数の和:2031

約数の個数: 16

約数和(自身を含む): 30480000

約数和(自身を除く): 9960621

約数列:

[1, 3, 9, 27, 499, 1497, 1523, 4491, 4569, 13473, 13707, 41121, 759977, 2279931, 6839793, 20519379]

約数ペア:

[(1, 20519379), (3, 6839793), (9, 2279931), (27, 759977), (499, 41121), (1497, 13707), (1523, 13473), (4491, 4569)]