20665806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 52669440

約数和(自身を除く): 32003634

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 29, 38, 42, 47, 57, 58, 87, 94, 114, 133, 141, 174, 203, 266, 282, 329, 361, 399, 406, 551, 609, 658, 722, 798, 893, 987, 1083, 1102, 1218, 1363, 1653, 1786, 1974, 2166, 2527, 2679, 2726, 3306, 3857, 4089, 5054, 5358, 6251, 7581, 7714, 8178, 9541, 10469, 11571, 12502, 15162, 16967, 18753, 19082, 20938, 23142, 25897, 28623, 31407, 33934, 37506, 50901, 51794, 57246, 62814, 73283, 77691, 101802, 118769, 146566, 155382, 181279, 219849, 237538, 356307, 362558, 439698, 492043, 543837, 712614, 984086, 1087674, 1476129, 2952258, 3444301, 6888602, 10332903, 20665806]

約数ペア:

[(1, 20665806), (2, 10332903), (3, 6888602), (6, 3444301), (7, 2952258), (14, 1476129), (19, 1087674), (21, 984086), (29, 712614), (38, 543837), (42, 492043), (47, 439698), (57, 362558), (58, 356307), (87, 237538), (94, 219849), (114, 181279), (133, 155382), (141, 146566), (174, 118769), (203, 101802), (266, 77691), (282, 73283), (329, 62814), (361, 57246), (399, 51794), (406, 50901), (551, 37506), (609, 33934), (658, 31407), (722, 28623), (798, 25897), (893, 23142), (987, 20938), (1083, 19082), (1102, 18753), (1218, 16967), (1363, 15162), (1653, 12502), (1786, 11571), (1974, 10469), (2166, 9541), (2527, 8178), (2679, 7714), (2726, 7581), (3306, 6251), (3857, 5358), (4089, 5054)]