18744471

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1091}}^1$

素因数の和:1203

約数の個数: 24

約数和(自身を含む): 28619136

約数和(自身を除く): 9874665

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 747, 1091, 1909, 3273, 5727, 9819, 17181, 25093, 75279, 90553, 225837, 271659, 814977, 2082719, 6248157, 18744471]

約数ペア:

[(1, 18744471), (3, 6248157), (9, 2082719), (23, 814977), (69, 271659), (83, 225837), (207, 90553), (249, 75279), (747, 25093), (1091, 17181), (1909, 9819), (3273, 5727)]