18758007

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 29173760

約数和(自身を除く): 10415753

約数列:

[1, 3, 9, 27, 31, 73, 93, 219, 279, 307, 657, 837, 921, 1971, 2263, 2763, 6789, 8289, 9517, 20367, 22411, 28551, 61101, 67233, 85653, 201699, 256959, 605097, 694741, 2084223, 6252669, 18758007]

約数ペア:

[(1, 18758007), (3, 6252669), (9, 2084223), (27, 694741), (31, 605097), (73, 256959), (93, 201699), (219, 85653), (279, 67233), (307, 61101), (657, 28551), (837, 22411), (921, 20367), (1971, 9517), (2263, 8289), (2763, 6789)]