19634643

素因数分解:

$3^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 36599472

約数和(自身を除く): 16964829

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 97, 119, 147, 153, 189, 243, 291, 357, 441, 459, 567, 679, 833, 873, 1071, 1323, 1377, 1649, 1701, 2037, 2499, 2619, 3213, 3969, 4131, 4753, 4947, 6111, 7497, 7857, 9639, 11543, 11907, 14259, 14841, 18333, 22491, 23571, 28917, 34629, 42777, 44523, 54999, 67473, 80801, 103887, 128331, 133569, 164997, 202419, 242403, 311661, 384993, 400707, 727209, 934983, 1154979, 2181627, 2804949, 6544881, 19634643]

約数ペア:

[(1, 19634643), (3, 6544881), (7, 2804949), (9, 2181627), (17, 1154979), (21, 934983), (27, 727209), (49, 400707), (51, 384993), (63, 311661), (81, 242403), (97, 202419), (119, 164997), (147, 133569), (153, 128331), (189, 103887), (243, 80801), (291, 67473), (357, 54999), (441, 44523), (459, 42777), (567, 34629), (679, 28917), (833, 23571), (873, 22491), (1071, 18333), (1323, 14841), (1377, 14259), (1649, 11907), (1701, 11543), (2037, 9639), (2499, 7857), (2619, 7497), (3213, 6111), (3969, 4947), (4131, 4753)]