21998520054

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{444253}}^1$

素因数の和:444402

約数の個数: 64

約数和(自身を含む): 56295866880

約数和(自身を除く): 34297346826

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 131, 189, 262, 378, 393, 786, 917, 1179, 1834, 2358, 2751, 3537, 5502, 7074, 8253, 16506, 24759, 49518, 444253, 888506, 1332759, 2665518, 3109771, 3998277, 6219542, 7996554, 9329313, 11994831, 18658626, 23989662, 27987939, 55975878, 58197143, 83963817, 116394286, 167927634, 174591429, 349182858, 407380001, 523774287, 814760002, 1047548574, 1222140003, 1571322861, 2444280006, 3142645722, 3666420009, 7332840018, 10999260027, 21998520054]

約数ペア:

[(1, 21998520054), (2, 10999260027), (3, 7332840018), (6, 3666420009), (7, 3142645722), (9, 2444280006), (14, 1571322861), (18, 1222140003), (21, 1047548574), (27, 814760002), (42, 523774287), (54, 407380001), (63, 349182858), (126, 174591429), (131, 167927634), (189, 116394286), (262, 83963817), (378, 58197143), (393, 55975878), (786, 27987939), (917, 23989662), (1179, 18658626), (1834, 11994831), (2358, 9329313), (2751, 7996554), (3537, 6219542), (5502, 3998277), (7074, 3109771), (8253, 2665518), (16506, 1332759), (24759, 888506), (49518, 444253)]