28732767

素因数分解:

$3^1\times 7^4\times {\mathrm{3989}}^1$

素因数の和:4020

約数の個数: 20

約数和(自身を含む): 44703960

約数和(自身を除く): 15971193

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 3989, 7203, 11967, 27923, 83769, 195461, 586383, 1368227, 4104681, 9577589, 28732767]

約数ペア:

[(1, 28732767), (3, 9577589), (7, 4104681), (21, 1368227), (49, 586383), (147, 195461), (343, 83769), (1029, 27923), (2401, 11967), (3989, 7203)]