28120185

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16889}}^1$

素因数の和:16937

約数の個数: 24

約数和(自身を含む): 50061960

約数和(自身を除く): 21941775

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 16889, 50667, 84445, 152001, 253335, 624893, 760005, 1874679, 3124465, 5624037, 9373395, 28120185]

約数ペア:

[(1, 28120185), (3, 9373395), (5, 5624037), (9, 3124465), (15, 1874679), (37, 760005), (45, 624893), (111, 253335), (185, 152001), (333, 84445), (555, 50667), (1665, 16889)]