21890064

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:293

約数の個数: 120

約数和(自身を含む): 67683168

約数和(自身を除く): 45793104

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 49, 56, 82, 84, 98, 112, 123, 147, 164, 168, 196, 227, 246, 287, 294, 328, 336, 392, 454, 492, 574, 588, 656, 681, 784, 861, 908, 984, 1148, 1176, 1362, 1589, 1722, 1816, 1968, 2009, 2296, 2352, 2724, 3178, 3444, 3632, 4018, 4592, 4767, 5448, 6027, 6356, 6888, 8036, 9307, 9534, 10896, 11123, 12054, 12712, 13776, 16072, 18614, 19068, 22246, 24108, 25424, 27921, 32144, 33369, 37228, 38136, 44492, 48216, 55842, 65149, 66738, 74456, 76272, 88984, 96432, 111684, 130298, 133476, 148912, 177968, 195447, 223368, 260596, 266952, 390894, 446736, 456043, 521192, 533904, 781788, 912086, 1042384, 1368129, 1563576, 1824172, 2736258, 3127152, 3648344, 5472516, 7296688, 10945032, 21890064]

約数ペア:

[(1, 21890064), (2, 10945032), (3, 7296688), (4, 5472516), (6, 3648344), (7, 3127152), (8, 2736258), (12, 1824172), (14, 1563576), (16, 1368129), (21, 1042384), (24, 912086), (28, 781788), (41, 533904), (42, 521192), (48, 456043), (49, 446736), (56, 390894), (82, 266952), (84, 260596), (98, 223368), (112, 195447), (123, 177968), (147, 148912), (164, 133476), (168, 130298), (196, 111684), (227, 96432), (246, 88984), (287, 76272), (294, 74456), (328, 66738), (336, 65149), (392, 55842), (454, 48216), (492, 44492), (574, 38136), (588, 37228), (656, 33369), (681, 32144), (784, 27921), (861, 25424), (908, 24108), (984, 22246), (1148, 19068), (1176, 18614), (1362, 16072), (1589, 13776), (1722, 12712), (1816, 12054), (1968, 11123), (2009, 10896), (2296, 9534), (2352, 9307), (2724, 8036), (3178, 6888), (3444, 6356), (3632, 6027), (4018, 5448), (4592, 4767)]