21810348

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 67931136

約数和(自身を除く): 46120788

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 53, 63, 69, 71, 84, 92, 106, 126, 138, 142, 159, 161, 207, 212, 213, 252, 276, 284, 318, 322, 371, 414, 426, 477, 483, 497, 636, 639, 644, 742, 828, 852, 954, 966, 994, 1113, 1219, 1278, 1449, 1484, 1491, 1633, 1908, 1932, 1988, 2226, 2438, 2556, 2898, 2982, 3266, 3339, 3657, 3763, 4452, 4473, 4876, 4899, 5796, 5964, 6532, 6678, 7314, 7526, 8533, 8946, 9798, 10971, 11289, 11431, 13356, 14628, 14697, 15052, 17066, 17892, 19596, 21942, 22578, 22862, 25599, 26341, 29394, 33867, 34132, 34293, 43884, 45156, 45724, 51198, 52682, 58788, 67734, 68586, 76797, 79023, 86549, 102396, 102879, 105364, 135468, 137172, 153594, 158046, 173098, 205758, 237069, 259647, 307188, 316092, 346196, 411516, 474138, 519294, 605843, 778941, 948276, 1038588, 1211686, 1557882, 1817529, 2423372, 3115764, 3635058, 5452587, 7270116, 10905174, 21810348]

約数ペア:

[(1, 21810348), (2, 10905174), (3, 7270116), (4, 5452587), (6, 3635058), (7, 3115764), (9, 2423372), (12, 1817529), (14, 1557882), (18, 1211686), (21, 1038588), (23, 948276), (28, 778941), (36, 605843), (42, 519294), (46, 474138), (53, 411516), (63, 346196), (69, 316092), (71, 307188), (84, 259647), (92, 237069), (106, 205758), (126, 173098), (138, 158046), (142, 153594), (159, 137172), (161, 135468), (207, 105364), (212, 102879), (213, 102396), (252, 86549), (276, 79023), (284, 76797), (318, 68586), (322, 67734), (371, 58788), (414, 52682), (426, 51198), (477, 45724), (483, 45156), (497, 43884), (636, 34293), (639, 34132), (644, 33867), (742, 29394), (828, 26341), (852, 25599), (954, 22862), (966, 22578), (994, 21942), (1113, 19596), (1219, 17892), (1278, 17066), (1449, 15052), (1484, 14697), (1491, 14628), (1633, 13356), (1908, 11431), (1932, 11289), (1988, 10971), (2226, 9798), (2438, 8946), (2556, 8533), (2898, 7526), (2982, 7314), (3266, 6678), (3339, 6532), (3657, 5964), (3763, 5796), (4452, 4899), (4473, 4876)]