21517188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 66138240

約数和(自身を除く): 44621052

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 29, 33, 42, 44, 58, 66, 73, 77, 84, 87, 116, 121, 132, 146, 154, 174, 203, 219, 231, 242, 292, 308, 319, 348, 363, 406, 438, 462, 484, 511, 609, 638, 726, 803, 812, 847, 876, 924, 957, 1022, 1218, 1276, 1452, 1533, 1606, 1694, 1914, 2044, 2117, 2233, 2409, 2436, 2541, 3066, 3212, 3388, 3509, 3828, 4234, 4466, 4818, 5082, 5621, 6132, 6351, 6699, 7018, 8468, 8833, 8932, 9636, 10164, 10527, 11242, 12702, 13398, 14036, 14819, 16863, 17666, 21054, 22484, 23287, 24563, 25404, 26499, 26796, 29638, 33726, 35332, 42108, 44457, 46574, 49126, 52998, 59276, 61831, 67452, 69861, 73689, 88914, 93148, 98252, 105996, 123662, 139722, 147378, 163009, 177828, 185493, 247324, 256157, 279444, 294756, 326018, 370986, 489027, 512314, 652036, 741972, 768471, 978054, 1024628, 1536942, 1793099, 1956108, 3073884, 3586198, 5379297, 7172396, 10758594, 21517188]

約数ペア:

[(1, 21517188), (2, 10758594), (3, 7172396), (4, 5379297), (6, 3586198), (7, 3073884), (11, 1956108), (12, 1793099), (14, 1536942), (21, 1024628), (22, 978054), (28, 768471), (29, 741972), (33, 652036), (42, 512314), (44, 489027), (58, 370986), (66, 326018), (73, 294756), (77, 279444), (84, 256157), (87, 247324), (116, 185493), (121, 177828), (132, 163009), (146, 147378), (154, 139722), (174, 123662), (203, 105996), (219, 98252), (231, 93148), (242, 88914), (292, 73689), (308, 69861), (319, 67452), (348, 61831), (363, 59276), (406, 52998), (438, 49126), (462, 46574), (484, 44457), (511, 42108), (609, 35332), (638, 33726), (726, 29638), (803, 26796), (812, 26499), (847, 25404), (876, 24563), (924, 23287), (957, 22484), (1022, 21054), (1218, 17666), (1276, 16863), (1452, 14819), (1533, 14036), (1606, 13398), (1694, 12702), (1914, 11242), (2044, 10527), (2117, 10164), (2233, 9636), (2409, 8932), (2436, 8833), (2541, 8468), (3066, 7018), (3212, 6699), (3388, 6351), (3509, 6132), (3828, 5621), (4234, 5082), (4466, 4818)]