19989531

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{4903}}^1$

素因数の和:5063

約数の個数: 16

約数和(自身を含む): 29816320

約数和(自身を除く): 9826789

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 4903, 14709, 44127, 132381, 740353, 2221059, 6663177, 19989531]

約数ペア:

[(1, 19989531), (3, 6663177), (9, 2221059), (27, 740353), (151, 132381), (453, 44127), (1359, 14709), (4077, 4903)]