28356903

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 41932800

約数和(自身を除く): 13575897

約数列:

[1, 3, 9, 71, 199, 213, 223, 597, 639, 669, 1791, 2007, 14129, 15833, 42387, 44377, 47499, 127161, 133131, 142497, 399393, 3150767, 9452301, 28356903]

約数ペア:

[(1, 28356903), (3, 9452301), (9, 3150767), (71, 399393), (199, 142497), (213, 133131), (223, 127161), (597, 47499), (639, 44377), (669, 42387), (1791, 15833), (2007, 14129)]