20737467

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 13228101

約数列:

[1, 3, 9, 17, 23, 51, 69, 71, 83, 153, 207, 213, 249, 391, 639, 747, 1173, 1207, 1411, 1633, 1909, 3519, 3621, 4233, 4899, 5727, 5893, 10863, 12699, 14697, 17181, 17679, 27761, 32453, 53037, 83283, 97359, 100181, 135539, 249849, 292077, 300543, 406617, 901629, 1219851, 2304163, 6912489, 20737467]

約数ペア:

[(1, 20737467), (3, 6912489), (9, 2304163), (17, 1219851), (23, 901629), (51, 406617), (69, 300543), (71, 292077), (83, 249849), (153, 135539), (207, 100181), (213, 97359), (249, 83283), (391, 53037), (639, 32453), (747, 27761), (1173, 17679), (1207, 17181), (1411, 14697), (1633, 12699), (1909, 10863), (3519, 5893), (3621, 5727), (4233, 4899)]