28309437

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 47855808

約数和(自身を除く): 19546371

約数列:

[1, 3, 9, 13, 17, 39, 43, 51, 117, 129, 153, 221, 331, 387, 559, 663, 731, 993, 1677, 1989, 2193, 2979, 4303, 5031, 5627, 6579, 9503, 12909, 14233, 16881, 28509, 38727, 42699, 50643, 73151, 85527, 128097, 185029, 219453, 241961, 555087, 658359, 725883, 1665261, 2177649, 3145493, 9436479, 28309437]

約数ペア:

[(1, 28309437), (3, 9436479), (9, 3145493), (13, 2177649), (17, 1665261), (39, 725883), (43, 658359), (51, 555087), (117, 241961), (129, 219453), (153, 185029), (221, 128097), (331, 85527), (387, 73151), (559, 50643), (663, 42699), (731, 38727), (993, 28509), (1677, 16881), (1989, 14233), (2193, 12909), (2979, 9503), (4303, 6579), (5031, 5627)]