19989907971

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1305

約数の個数: 96

約数和(自身を含む): 31843596288

約数和(自身を除く): 11853688317

約数列:

[1, 3, 11, 31, 33, 37, 41, 93, 111, 121, 123, 341, 363, 407, 451, 1023, 1147, 1171, 1221, 1271, 1353, 1517, 3441, 3513, 3751, 3813, 4477, 4551, 4961, 11253, 12617, 12881, 13431, 13981, 14883, 16687, 36301, 37851, 38643, 41943, 43327, 47027, 48011, 50061, 108903, 129981, 138787, 141081, 141691, 144033, 153791, 183557, 399311, 416361, 425073, 461373, 476597, 517297, 528121, 550671, 1197933, 1343137, 1429791, 1488341, 1551891, 1584363, 1776407, 4029411, 4392421, 4465023, 5242567, 5329221, 5690267, 5809331, 13177263, 14774507, 15727701, 16371751, 17070801, 17427993, 19540477, 44323521, 49115253, 55068617, 58621431, 162519577, 165205851, 180089261, 214945247, 487558731, 540267783, 605754787, 644835741, 1817264361, 6663302657, 19989907971]

約数ペア:

[(1, 19989907971), (3, 6663302657), (11, 1817264361), (31, 644835741), (33, 605754787), (37, 540267783), (41, 487558731), (93, 214945247), (111, 180089261), (121, 165205851), (123, 162519577), (341, 58621431), (363, 55068617), (407, 49115253), (451, 44323521), (1023, 19540477), (1147, 17427993), (1171, 17070801), (1221, 16371751), (1271, 15727701), (1353, 14774507), (1517, 13177263), (3441, 5809331), (3513, 5690267), (3751, 5329221), (3813, 5242567), (4477, 4465023), (4551, 4392421), (4961, 4029411), (11253, 1776407), (12617, 1584363), (12881, 1551891), (13431, 1488341), (13981, 1429791), (14883, 1343137), (16687, 1197933), (36301, 550671), (37851, 528121), (38643, 517297), (41943, 476597), (43327, 461373), (47027, 425073), (48011, 416361), (50061, 399311), (108903, 183557), (129981, 153791), (138787, 144033), (141081, 141691)]