639714879

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{1759}}^1\times {\mathrm{2377}}^1$

素因数の和:4159

約数の個数: 24

約数和(自身を含む): 979355520

約数和(自身を除く): 339640641

約数列:

[1, 3, 9, 17, 51, 153, 1759, 2377, 5277, 7131, 15831, 21393, 29903, 40409, 89709, 121227, 269127, 363681, 4181143, 12543429, 37630287, 71079431, 213238293, 639714879]

約数ペア:

[(1, 639714879), (3, 213238293), (9, 71079431), (17, 37630287), (51, 12543429), (153, 4181143), (1759, 363681), (2377, 269127), (5277, 121227), (7131, 89709), (15831, 40409), (21393, 29903)]