28509273

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81223}}^1$

素因数の和:81245

約数の個数: 16

約数和(自身を含む): 45485440

約数和(自身を除く): 16976167

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81223, 243669, 731007, 1055899, 2193021, 3167697, 9503091, 28509273]

約数ペア:

[(1, 28509273), (3, 9503091), (9, 3167697), (13, 2193021), (27, 1055899), (39, 731007), (117, 243669), (351, 81223)]