21383649

素因数分解:

$3^3\times 7^3\times {\mathrm{2309}}^1$

素因数の和:2339

約数の個数: 32

約数和(自身を含む): 36960000

約数和(自身を除く): 15576351

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 2309, 3087, 6927, 9261, 16163, 20781, 48489, 62343, 113141, 145467, 339423, 436401, 791987, 1018269, 2375961, 3054807, 7127883, 21383649]

約数ペア:

[(1, 21383649), (3, 7127883), (7, 3054807), (9, 2375961), (21, 1018269), (27, 791987), (49, 436401), (63, 339423), (147, 145467), (189, 113141), (343, 62343), (441, 48489), (1029, 20781), (1323, 16163), (2309, 9261), (3087, 6927)]