21057501190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{4721}}^1$

素因数の和:4846

約数の個数: 128

約数和(自身を含む): 45236911104

約数和(自身を除く): 24179409914

約数列:

[1, 2, 5, 10, 11, 22, 23, 41, 43, 46, 55, 82, 86, 110, 115, 205, 215, 230, 253, 410, 430, 451, 473, 506, 902, 943, 946, 989, 1265, 1763, 1886, 1978, 2255, 2365, 2530, 3526, 4510, 4715, 4721, 4730, 4945, 8815, 9430, 9442, 9890, 10373, 10879, 17630, 19393, 20746, 21758, 23605, 38786, 40549, 47210, 51865, 51931, 54395, 81098, 96965, 103730, 103862, 108583, 108790, 193561, 193930, 202745, 203003, 217166, 259655, 387122, 405490, 406006, 446039, 519310, 542915, 892078, 967805, 1015015, 1085830, 1194413, 1935610, 2030030, 2129171, 2230195, 2233033, 2388826, 4258342, 4451903, 4460390, 4466066, 4669069, 5972065, 8323123, 8903806, 9338138, 10645855, 11165165, 11944130, 16646246, 21291710, 22259515, 22330330, 23345345, 41615615, 44519030, 46690690, 48970933, 51359759, 83231230, 91554353, 97941866, 102719518, 183108706, 191431829, 244854665, 256798795, 382863658, 457771765, 489709330, 513597590, 915543530, 957159145, 1914318290, 2105750119, 4211500238, 10528750595, 21057501190]

約数ペア:

[(1, 21057501190), (2, 10528750595), (5, 4211500238), (10, 2105750119), (11, 1914318290), (22, 957159145), (23, 915543530), (41, 513597590), (43, 489709330), (46, 457771765), (55, 382863658), (82, 256798795), (86, 244854665), (110, 191431829), (115, 183108706), (205, 102719518), (215, 97941866), (230, 91554353), (253, 83231230), (410, 51359759), (430, 48970933), (451, 46690690), (473, 44519030), (506, 41615615), (902, 23345345), (943, 22330330), (946, 22259515), (989, 21291710), (1265, 16646246), (1763, 11944130), (1886, 11165165), (1978, 10645855), (2255, 9338138), (2365, 8903806), (2530, 8323123), (3526, 5972065), (4510, 4669069), (4715, 4466066), (4721, 4460390), (4730, 4451903), (4945, 4258342), (8815, 2388826), (9430, 2233033), (9442, 2230195), (9890, 2129171), (10373, 2030030), (10879, 1935610), (17630, 1194413), (19393, 1085830), (20746, 1015015), (21758, 967805), (23605, 892078), (38786, 542915), (40549, 519310), (47210, 446039), (51865, 406006), (51931, 405490), (54395, 387122), (81098, 259655), (96965, 217166), (103730, 203003), (103862, 202745), (108583, 193930), (108790, 193561)]