217285439

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{3221}}^1$

素因数の和:3670

約数の個数: 16

約数和(自身を含む): 259822080

約数和(自身を除く): 42536641

約数列:

[1, 7, 23, 161, 419, 2933, 3221, 9637, 22547, 67459, 74083, 518581, 1349599, 9447193, 31040777, 217285439]

約数ペア:

[(1, 217285439), (7, 31040777), (23, 9447193), (161, 1349599), (419, 518581), (2933, 74083), (3221, 67459), (9637, 22547)]