18994701

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:174

約数の個数: 32

約数和(自身を含む): 28670976

約数和(自身を除く): 9676275

約数列:

[1, 3, 11, 33, 67, 71, 121, 201, 213, 363, 737, 781, 1331, 2211, 2343, 3993, 4757, 8107, 8591, 14271, 24321, 25773, 52327, 89177, 94501, 156981, 267531, 283503, 575597, 1726791, 6331567, 18994701]

約数ペア:

[(1, 18994701), (3, 6331567), (11, 1726791), (33, 575597), (67, 283503), (71, 267531), (121, 156981), (201, 94501), (213, 89177), (363, 52327), (737, 25773), (781, 24321), (1331, 14271), (2211, 8591), (2343, 8107), (3993, 4757)]