21513532.000000000

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 108

約数和(自身を含む): 349504848

約数和(自身を除く): 200096204

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 77, 92, 98, 131, 154, 161, 196, 253, 262, 308, 322, 506, 524, 529, 539, 644, 917, 1012, 1058, 1078, 1127, 1441, 1771, 1834, 2116, 2156, 2254, 2882, 3013, 3542, 3668, 3703, 4508, 5764, 5819, 6026, 6419, 7084, 7406, 10087, 11638, 12052, 12397, 12838, 14812, 20174, 21091, 23276, 24794, 25676, 25921, 33143, 40348, 40733, 42182, 49588, 51842, 66286, 69299, 70609, 81466, 84364, 103684, 132572, 138598, 141218, 147637, 162932, 232001, 277196, 282436, 285131, 295274, 464002, 485093, 570262, 590548, 762289, 928004, 970186, 1140524, 1524578, 1624007, 1940372, 3049156, 3248014, 3395651, 5336023, 6496028, 6791302, 10672046, 13582604, 21344092, 37352161, 74704322, 149408644]

約数ペア:

[(1, 149408644), (2, 74704322), (4, 37352161), (7, 21344092), (11, 13582604), (14, 10672046), (22, 6791302), (23, 6496028), (28, 5336023), (44, 3395651), (46, 3248014), (49, 3049156), (77, 1940372), (92, 1624007), (98, 1524578), (131, 1140524), (154, 970186), (161, 928004), (196, 762289), (253, 590548), (262, 570262), (308, 485093), (322, 464002), (506, 295274), (524, 285131), (529, 282436), (539, 277196), (644, 232001), (917, 162932), (1012, 147637), (1058, 141218), (1078, 138598), (1127, 132572), (1441, 103684), (1771, 84364), (1834, 81466), (2116, 70609), (2156, 69299), (2254, 66286), (2882, 51842), (3013, 49588), (3542, 42182), (3668, 40733), (3703, 40348), (4508, 33143), (5764, 25921), (5819, 25676), (6026, 24794), (6419, 23276), (7084, 21091), (7406, 20174), (10087, 14812), (11638, 12838), (12052, 12397)]