21765753

素因数分解:

$3^6\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:500

約数の個数: 28

約数和(自身を含む): 33161620

約数和(自身を除く): 11395867

約数列:

[1, 3, 9, 27, 73, 81, 219, 243, 409, 657, 729, 1227, 1971, 3681, 5913, 11043, 17739, 29857, 33129, 53217, 89571, 99387, 268713, 298161, 806139, 2418417, 7255251, 21765753]

約数ペア:

[(1, 21765753), (3, 7255251), (9, 2418417), (27, 806139), (73, 298161), (81, 268713), (219, 99387), (243, 89571), (409, 53217), (657, 33129), (729, 29857), (1227, 17739), (1971, 11043), (3681, 5913)]