18830259

素因数分解:

$3^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 33306240

約数和(自身を除く): 14475981

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 301, 331, 387, 441, 903, 993, 1161, 1323, 2107, 2317, 2709, 2979, 6321, 6951, 8127, 8937, 14233, 16219, 18963, 20853, 42699, 48657, 56889, 62559, 99631, 128097, 145971, 298893, 384291, 437913, 697417, 896679, 2092251, 2690037, 6276753, 18830259]

約数ペア:

[(1, 18830259), (3, 6276753), (7, 2690037), (9, 2092251), (21, 896679), (27, 697417), (43, 437913), (49, 384291), (63, 298893), (129, 145971), (147, 128097), (189, 99631), (301, 62559), (331, 56889), (387, 48657), (441, 42699), (903, 20853), (993, 18963), (1161, 16219), (1323, 14233), (2107, 8937), (2317, 8127), (2709, 6951), (2979, 6321)]