19663308

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 108

約数和(自身を含む): 59007312

約数和(自身を除く): 39344004

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 71, 84, 98, 126, 142, 147, 157, 196, 213, 252, 284, 294, 314, 426, 441, 471, 497, 588, 628, 639, 852, 882, 942, 994, 1099, 1278, 1413, 1491, 1764, 1884, 1988, 2198, 2556, 2826, 2982, 3297, 3479, 4396, 4473, 5652, 5964, 6594, 6958, 7693, 8946, 9891, 10437, 11147, 13188, 13916, 15386, 17892, 19782, 20874, 22294, 23079, 30772, 31311, 33441, 39564, 41748, 44588, 46158, 62622, 66882, 69237, 78029, 92316, 100323, 125244, 133764, 138474, 156058, 200646, 234087, 276948, 312116, 401292, 468174, 546203, 702261, 936348, 1092406, 1404522, 1638609, 2184812, 2809044, 3277218, 4915827, 6554436, 9831654, 19663308]

約数ペア:

[(1, 19663308), (2, 9831654), (3, 6554436), (4, 4915827), (6, 3277218), (7, 2809044), (9, 2184812), (12, 1638609), (14, 1404522), (18, 1092406), (21, 936348), (28, 702261), (36, 546203), (42, 468174), (49, 401292), (63, 312116), (71, 276948), (84, 234087), (98, 200646), (126, 156058), (142, 138474), (147, 133764), (157, 125244), (196, 100323), (213, 92316), (252, 78029), (284, 69237), (294, 66882), (314, 62622), (426, 46158), (441, 44588), (471, 41748), (497, 39564), (588, 33441), (628, 31311), (639, 30772), (852, 23079), (882, 22294), (942, 20874), (994, 19782), (1099, 17892), (1278, 15386), (1413, 13916), (1491, 13188), (1764, 11147), (1884, 10437), (1988, 9891), (2198, 8946), (2556, 7693), (2826, 6958), (2982, 6594), (3297, 5964), (3479, 5652), (4396, 4473)]