20873664

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:223

約数の個数: 168

約数和(自身を含む): 71006208

約数和(自身を除く): 50132544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 32, 36, 42, 48, 56, 62, 63, 64, 72, 84, 93, 96, 112, 124, 126, 144, 167, 168, 186, 192, 217, 224, 248, 252, 279, 288, 334, 336, 372, 434, 448, 496, 501, 504, 558, 576, 651, 668, 672, 744, 868, 992, 1002, 1008, 1116, 1169, 1302, 1336, 1344, 1488, 1503, 1736, 1953, 1984, 2004, 2016, 2232, 2338, 2604, 2672, 2976, 3006, 3472, 3507, 3906, 4008, 4032, 4464, 4676, 5177, 5208, 5344, 5952, 6012, 6944, 7014, 7812, 8016, 8928, 9352, 10354, 10416, 10521, 10688, 12024, 13888, 14028, 15531, 15624, 16032, 17856, 18704, 20708, 20832, 21042, 24048, 28056, 31062, 31248, 32064, 36239, 37408, 41416, 41664, 42084, 46593, 48096, 56112, 62124, 62496, 72478, 74816, 82832, 84168, 93186, 96192, 108717, 112224, 124248, 124992, 144956, 165664, 168336, 186372, 217434, 224448, 248496, 289912, 326151, 331328, 336672, 372744, 434868, 496992, 579824, 652302, 673344, 745488, 869736, 993984, 1159648, 1304604, 1490976, 1739472, 2319296, 2609208, 2981952, 3478944, 5218416, 6957888, 10436832, 20873664]

約数ペア:

[(1, 20873664), (2, 10436832), (3, 6957888), (4, 5218416), (6, 3478944), (7, 2981952), (8, 2609208), (9, 2319296), (12, 1739472), (14, 1490976), (16, 1304604), (18, 1159648), (21, 993984), (24, 869736), (28, 745488), (31, 673344), (32, 652302), (36, 579824), (42, 496992), (48, 434868), (56, 372744), (62, 336672), (63, 331328), (64, 326151), (72, 289912), (84, 248496), (93, 224448), (96, 217434), (112, 186372), (124, 168336), (126, 165664), (144, 144956), (167, 124992), (168, 124248), (186, 112224), (192, 108717), (217, 96192), (224, 93186), (248, 84168), (252, 82832), (279, 74816), (288, 72478), (334, 62496), (336, 62124), (372, 56112), (434, 48096), (448, 46593), (496, 42084), (501, 41664), (504, 41416), (558, 37408), (576, 36239), (651, 32064), (668, 31248), (672, 31062), (744, 28056), (868, 24048), (992, 21042), (1002, 20832), (1008, 20708), (1116, 18704), (1169, 17856), (1302, 16032), (1336, 15624), (1344, 15531), (1488, 14028), (1503, 13888), (1736, 12024), (1953, 10688), (1984, 10521), (2004, 10416), (2016, 10354), (2232, 9352), (2338, 8928), (2604, 8016), (2672, 7812), (2976, 7014), (3006, 6944), (3472, 6012), (3507, 5952), (3906, 5344), (4008, 5208), (4032, 5177), (4464, 4676)]