20273211

素因数分解:

$3^2\times 7^2\times {\mathrm{45971}}^1$

素因数の和:45991

約数の個数: 18

約数和(自身を含む): 34065252

約数和(自身を除く): 13792041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45971, 137913, 321797, 413739, 965391, 2252579, 2896173, 6757737, 20273211]

約数ペア:

[(1, 20273211), (3, 6757737), (7, 2896173), (9, 2252579), (21, 965391), (49, 413739), (63, 321797), (147, 137913), (441, 45971)]