78981891

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1\times {\mathrm{709}}^1$

素因数の和:1306

約数の個数: 16

約数和(自身を含む): 107147520

約数和(自身を除く): 28165629

約数列:

[1, 3, 71, 213, 523, 709, 1569, 2127, 37133, 50339, 111399, 151017, 370807, 1112421, 26327297, 78981891]

約数ペア:

[(1, 78981891), (3, 26327297), (71, 1112421), (213, 370807), (523, 151017), (709, 111399), (1569, 50339), (2127, 37133)]