20996858106

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:493

約数の個数: 192

約数和(自身を含む): 53940556800

約数和(自身を除く): 32943698694

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 79, 89, 126, 137, 158, 173, 178, 237, 267, 274, 346, 411, 474, 519, 534, 553, 623, 711, 801, 822, 959, 1038, 1106, 1211, 1233, 1246, 1422, 1557, 1602, 1659, 1869, 1918, 2422, 2466, 2877, 3114, 3318, 3633, 3738, 4977, 5607, 5754, 7031, 7266, 8631, 9954, 10823, 10899, 11214, 12193, 13667, 14062, 15397, 17262, 21093, 21646, 21798, 23701, 24386, 27334, 30794, 32469, 36579, 41001, 42186, 46191, 47402, 49217, 63279, 64938, 71103, 73158, 75761, 82002, 85351, 92382, 95669, 97407, 98434, 107779, 109737, 123003, 126558, 138573, 142206, 147651, 151522, 165907, 170702, 191338, 194814, 213309, 215558, 219474, 227283, 246006, 256053, 277146, 287007, 295302, 323337, 331814, 426618, 442953, 454566, 497721, 512106, 574014, 646674, 681849, 768159, 861021, 885906, 963247, 970011, 995442, 1216363, 1363698, 1493163, 1536318, 1722042, 1872379, 1926494, 1940022, 2109389, 2432726, 2889741, 2986326, 3649089, 3744758, 4218778, 5617137, 5779482, 6328167, 6742729, 7298178, 8514541, 8669223, 10947267, 11234274, 12656334, 13106653, 13485458, 14765723, 16851411, 17029082, 17338446, 18984501, 20228187, 21894534, 25543623, 26213306, 29531446, 33702822, 37969002, 39319959, 40456374, 44297169, 51087246, 60684561, 76630869, 78639918, 88594338, 117959877, 121369122, 132891507, 153261738, 166641731, 235919754, 265783014, 333283462, 499925193, 999850386, 1166492117, 1499775579, 2332984234, 2999551158, 3499476351, 6998952702, 10498429053, 20996858106]

約数ペア:

[(1, 20996858106), (2, 10498429053), (3, 6998952702), (6, 3499476351), (7, 2999551158), (9, 2332984234), (14, 1499775579), (18, 1166492117), (21, 999850386), (42, 499925193), (63, 333283462), (79, 265783014), (89, 235919754), (126, 166641731), (137, 153261738), (158, 132891507), (173, 121369122), (178, 117959877), (237, 88594338), (267, 78639918), (274, 76630869), (346, 60684561), (411, 51087246), (474, 44297169), (519, 40456374), (534, 39319959), (553, 37969002), (623, 33702822), (711, 29531446), (801, 26213306), (822, 25543623), (959, 21894534), (1038, 20228187), (1106, 18984501), (1211, 17338446), (1233, 17029082), (1246, 16851411), (1422, 14765723), (1557, 13485458), (1602, 13106653), (1659, 12656334), (1869, 11234274), (1918, 10947267), (2422, 8669223), (2466, 8514541), (2877, 7298178), (3114, 6742729), (3318, 6328167), (3633, 5779482), (3738, 5617137), (4977, 4218778), (5607, 3744758), (5754, 3649089), (7031, 2986326), (7266, 2889741), (8631, 2432726), (9954, 2109389), (10823, 1940022), (10899, 1926494), (11214, 1872379), (12193, 1722042), (13667, 1536318), (14062, 1493163), (15397, 1363698), (17262, 1216363), (21093, 995442), (21646, 970011), (21798, 963247), (23701, 885906), (24386, 861021), (27334, 768159), (30794, 681849), (32469, 646674), (36579, 574014), (41001, 512106), (42186, 497721), (46191, 454566), (47402, 442953), (49217, 426618), (63279, 331814), (64938, 323337), (71103, 295302), (73158, 287007), (75761, 277146), (82002, 256053), (85351, 246006), (92382, 227283), (95669, 219474), (97407, 215558), (98434, 213309), (107779, 194814), (109737, 191338), (123003, 170702), (126558, 165907), (138573, 151522), (142206, 147651)]