21857682

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:85

約数の個数: 128

約数和(自身を含む): 60715008

約数和(自身を除く): 38857326

約数列:

[1, 2, 3, 6, 7, 11, 14, 17, 21, 22, 23, 33, 34, 42, 46, 51, 66, 69, 77, 102, 119, 121, 138, 154, 161, 187, 231, 238, 242, 253, 322, 357, 363, 374, 391, 462, 483, 506, 561, 714, 726, 759, 782, 847, 966, 1122, 1173, 1309, 1331, 1518, 1694, 1771, 2057, 2346, 2541, 2618, 2662, 2737, 2783, 3542, 3927, 3993, 4114, 4301, 5082, 5313, 5474, 5566, 6171, 7854, 7986, 8211, 8349, 8602, 9317, 10626, 12342, 12903, 14399, 16422, 16698, 18634, 19481, 22627, 25806, 27951, 28798, 30107, 30613, 38962, 43197, 45254, 47311, 55902, 58443, 60214, 61226, 67881, 86394, 90321, 91839, 94622, 116886, 135762, 141933, 158389, 180642, 183678, 214291, 283866, 316778, 331177, 428582, 475167, 520421, 642873, 662354, 950334, 993531, 1040842, 1285746, 1561263, 1987062, 3122526, 3642947, 7285894, 10928841, 21857682]

約数ペア:

[(1, 21857682), (2, 10928841), (3, 7285894), (6, 3642947), (7, 3122526), (11, 1987062), (14, 1561263), (17, 1285746), (21, 1040842), (22, 993531), (23, 950334), (33, 662354), (34, 642873), (42, 520421), (46, 475167), (51, 428582), (66, 331177), (69, 316778), (77, 283866), (102, 214291), (119, 183678), (121, 180642), (138, 158389), (154, 141933), (161, 135762), (187, 116886), (231, 94622), (238, 91839), (242, 90321), (253, 86394), (322, 67881), (357, 61226), (363, 60214), (374, 58443), (391, 55902), (462, 47311), (483, 45254), (506, 43197), (561, 38962), (714, 30613), (726, 30107), (759, 28798), (782, 27951), (847, 25806), (966, 22627), (1122, 19481), (1173, 18634), (1309, 16698), (1331, 16422), (1518, 14399), (1694, 12903), (1771, 12342), (2057, 10626), (2346, 9317), (2541, 8602), (2618, 8349), (2662, 8211), (2737, 7986), (2783, 7854), (3542, 6171), (3927, 5566), (3993, 5474), (4114, 5313), (4301, 5082)]