21327180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 54151860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 29, 30, 34, 35, 42, 51, 58, 60, 68, 70, 84, 85, 87, 102, 103, 105, 116, 119, 140, 145, 170, 174, 203, 204, 206, 210, 238, 255, 290, 309, 340, 348, 357, 406, 412, 420, 435, 476, 493, 510, 515, 580, 595, 609, 618, 714, 721, 812, 870, 986, 1015, 1020, 1030, 1190, 1218, 1236, 1428, 1442, 1479, 1545, 1740, 1751, 1785, 1972, 2030, 2060, 2163, 2380, 2436, 2465, 2884, 2958, 2987, 3045, 3090, 3451, 3502, 3570, 3605, 4060, 4326, 4930, 5253, 5916, 5974, 6090, 6180, 6902, 7004, 7140, 7210, 7395, 8652, 8755, 8961, 9860, 10353, 10506, 10815, 11948, 12180, 12257, 13804, 14420, 14790, 14935, 17255, 17510, 17922, 20706, 20909, 21012, 21630, 24514, 26265, 29580, 29870, 34510, 35020, 35844, 36771, 41412, 41818, 43260, 44805, 49028, 50779, 51765, 52530, 59740, 61285, 62727, 69020, 73542, 83636, 89610, 101558, 103530, 104545, 105060, 122570, 125454, 147084, 152337, 179220, 183855, 203116, 207060, 209090, 245140, 250908, 253895, 304674, 313635, 355453, 367710, 418180, 507790, 609348, 627270, 710906, 735420, 761685, 1015580, 1066359, 1254540, 1421812, 1523370, 1777265, 2132718, 3046740, 3554530, 4265436, 5331795, 7109060, 10663590, 21327180]

約数ペア:

[(1, 21327180), (2, 10663590), (3, 7109060), (4, 5331795), (5, 4265436), (6, 3554530), (7, 3046740), (10, 2132718), (12, 1777265), (14, 1523370), (15, 1421812), (17, 1254540), (20, 1066359), (21, 1015580), (28, 761685), (29, 735420), (30, 710906), (34, 627270), (35, 609348), (42, 507790), (51, 418180), (58, 367710), (60, 355453), (68, 313635), (70, 304674), (84, 253895), (85, 250908), (87, 245140), (102, 209090), (103, 207060), (105, 203116), (116, 183855), (119, 179220), (140, 152337), (145, 147084), (170, 125454), (174, 122570), (203, 105060), (204, 104545), (206, 103530), (210, 101558), (238, 89610), (255, 83636), (290, 73542), (309, 69020), (340, 62727), (348, 61285), (357, 59740), (406, 52530), (412, 51765), (420, 50779), (435, 49028), (476, 44805), (493, 43260), (510, 41818), (515, 41412), (580, 36771), (595, 35844), (609, 35020), (618, 34510), (714, 29870), (721, 29580), (812, 26265), (870, 24514), (986, 21630), (1015, 21012), (1020, 20909), (1030, 20706), (1190, 17922), (1218, 17510), (1236, 17255), (1428, 14935), (1442, 14790), (1479, 14420), (1545, 13804), (1740, 12257), (1751, 12180), (1785, 11948), (1972, 10815), (2030, 10506), (2060, 10353), (2163, 9860), (2380, 8961), (2436, 8755), (2465, 8652), (2884, 7395), (2958, 7210), (2987, 7140), (3045, 7004), (3090, 6902), (3451, 6180), (3502, 6090), (3570, 5974), (3605, 5916), (4060, 5253), (4326, 4930)]