19999848

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 56306880

約数和(自身を除く): 36307032

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 71, 88, 97, 121, 132, 142, 194, 213, 242, 264, 284, 291, 363, 388, 426, 484, 568, 582, 726, 776, 781, 852, 968, 1067, 1164, 1452, 1562, 1704, 2134, 2328, 2343, 2904, 3124, 3201, 4268, 4686, 6248, 6402, 6887, 8536, 8591, 9372, 11737, 12804, 13774, 17182, 18744, 20661, 23474, 25608, 25773, 27548, 34364, 35211, 41322, 46948, 51546, 55096, 68728, 70422, 75757, 82644, 93896, 103092, 140844, 151514, 165288, 206184, 227271, 281688, 303028, 454542, 606056, 833327, 909084, 1666654, 1818168, 2499981, 3333308, 4999962, 6666616, 9999924, 19999848]

約数ペア:

[(1, 19999848), (2, 9999924), (3, 6666616), (4, 4999962), (6, 3333308), (8, 2499981), (11, 1818168), (12, 1666654), (22, 909084), (24, 833327), (33, 606056), (44, 454542), (66, 303028), (71, 281688), (88, 227271), (97, 206184), (121, 165288), (132, 151514), (142, 140844), (194, 103092), (213, 93896), (242, 82644), (264, 75757), (284, 70422), (291, 68728), (363, 55096), (388, 51546), (426, 46948), (484, 41322), (568, 35211), (582, 34364), (726, 27548), (776, 25773), (781, 25608), (852, 23474), (968, 20661), (1067, 18744), (1164, 17182), (1452, 13774), (1562, 12804), (1704, 11737), (2134, 9372), (2328, 8591), (2343, 8536), (2904, 6887), (3124, 6402), (3201, 6248), (4268, 4686)]