28324527

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 48416256

約数和(自身を除く): 20091729

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 121, 157, 213, 231, 363, 471, 497, 781, 847, 1099, 1491, 1727, 2343, 2541, 3297, 5181, 5467, 8591, 11147, 12089, 16401, 18997, 25773, 33441, 36267, 56991, 60137, 78029, 122617, 132979, 180411, 234087, 367851, 398937, 858319, 1348787, 2574957, 4046361, 9441509, 28324527]

約数ペア:

[(1, 28324527), (3, 9441509), (7, 4046361), (11, 2574957), (21, 1348787), (33, 858319), (71, 398937), (77, 367851), (121, 234087), (157, 180411), (213, 132979), (231, 122617), (363, 78029), (471, 60137), (497, 56991), (781, 36267), (847, 33441), (1099, 25773), (1491, 18997), (1727, 16401), (2343, 12089), (2541, 11147), (3297, 8591), (5181, 5467)]