18111519

素因数分解:

$3^5\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 27528592

約数和(自身を除く): 9417073

約数列:

[1, 3, 9, 27, 73, 81, 219, 243, 657, 1021, 1971, 3063, 5913, 9189, 17739, 27567, 74533, 82701, 223599, 248103, 670797, 2012391, 6037173, 18111519]

約数ペア:

[(1, 18111519), (3, 6037173), (9, 2012391), (27, 670797), (73, 248103), (81, 223599), (219, 82701), (243, 74533), (657, 27567), (1021, 17739), (1971, 9189), (3063, 5913)]