21078172728

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1093}}^1$

素因数の和:1291

約数の個数: 256

約数和(自身を含む): 63854592000

約数和(自身を除く): 42776419272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 37, 38, 54, 57, 72, 74, 76, 108, 111, 114, 127, 148, 152, 171, 216, 222, 228, 254, 296, 333, 342, 381, 444, 456, 508, 513, 666, 684, 703, 762, 888, 999, 1016, 1026, 1093, 1143, 1332, 1368, 1406, 1524, 1998, 2052, 2109, 2186, 2286, 2413, 2664, 2812, 3048, 3279, 3429, 3996, 4104, 4218, 4372, 4572, 4699, 4826, 5624, 6327, 6558, 6858, 7239, 7992, 8436, 8744, 9144, 9398, 9652, 9837, 12654, 13116, 13716, 14097, 14478, 16872, 18796, 18981, 19304, 19674, 20767, 21717, 25308, 26232, 27432, 28194, 28956, 29511, 37592, 37962, 39348, 40441, 41534, 42291, 43434, 50616, 56388, 57912, 59022, 62301, 65151, 75924, 78696, 80882, 83068, 84582, 86868, 89281, 112776, 118044, 121323, 124602, 126873, 130302, 138811, 151848, 161764, 166136, 169164, 173736, 178562, 186903, 236088, 242646, 249204, 253746, 260604, 267843, 277622, 323528, 338328, 357124, 363969, 373806, 416433, 485292, 498408, 507492, 521208, 535686, 555244, 560709, 714248, 727938, 747612, 768379, 803529, 832866, 970584, 1014984, 1071372, 1091907, 1110488, 1121418, 1249299, 1455876, 1495224, 1536758, 1607058, 1665732, 2142744, 2183814, 2242836, 2305137, 2410587, 2498598, 2637409, 2911752, 3073516, 3214116, 3331464, 3747897, 4367628, 4485672, 4610274, 4821174, 4997196, 5136007, 5274818, 6147032, 6428232, 6915411, 7495794, 7912227, 8735256, 9220548, 9642348, 9994392, 10272014, 10549636, 13830822, 14991588, 15408021, 15824454, 18441096, 19284696, 20544028, 20746233, 21099272, 23736681, 27661644, 29983176, 30816042, 31648908, 41088056, 41492466, 46224063, 47473362, 55323288, 61632084, 63297816, 71210043, 82984932, 92448126, 94946724, 97584133, 123264168, 138672189, 142420086, 165969864, 184896252, 189893448, 195168266, 277344378, 284840172, 292752399, 369792504, 390336532, 554688756, 569680344, 585504798, 780673064, 878257197, 1109377512, 1171009596, 1756514394, 2342019192, 2634771591, 3513028788, 5269543182, 7026057576, 10539086364, 21078172728]

約数ペア:

[(1, 21078172728), (2, 10539086364), (3, 7026057576), (4, 5269543182), (6, 3513028788), (8, 2634771591), (9, 2342019192), (12, 1756514394), (18, 1171009596), (19, 1109377512), (24, 878257197), (27, 780673064), (36, 585504798), (37, 569680344), (38, 554688756), (54, 390336532), (57, 369792504), (72, 292752399), (74, 284840172), (76, 277344378), (108, 195168266), (111, 189893448), (114, 184896252), (127, 165969864), (148, 142420086), (152, 138672189), (171, 123264168), (216, 97584133), (222, 94946724), (228, 92448126), (254, 82984932), (296, 71210043), (333, 63297816), (342, 61632084), (381, 55323288), (444, 47473362), (456, 46224063), (508, 41492466), (513, 41088056), (666, 31648908), (684, 30816042), (703, 29983176), (762, 27661644), (888, 23736681), (999, 21099272), (1016, 20746233), (1026, 20544028), (1093, 19284696), (1143, 18441096), (1332, 15824454), (1368, 15408021), (1406, 14991588), (1524, 13830822), (1998, 10549636), (2052, 10272014), (2109, 9994392), (2186, 9642348), (2286, 9220548), (2413, 8735256), (2664, 7912227), (2812, 7495794), (3048, 6915411), (3279, 6428232), (3429, 6147032), (3996, 5274818), (4104, 5136007), (4218, 4997196), (4372, 4821174), (4572, 4610274), (4699, 4485672), (4826, 4367628), (5624, 3747897), (6327, 3331464), (6558, 3214116), (6858, 3073516), (7239, 2911752), (7992, 2637409), (8436, 2498598), (8744, 2410587), (9144, 2305137), (9398, 2242836), (9652, 2183814), (9837, 2142744), (12654, 1665732), (13116, 1607058), (13716, 1536758), (14097, 1495224), (14478, 1455876), (16872, 1249299), (18796, 1121418), (18981, 1110488), (19304, 1091907), (19674, 1071372), (20767, 1014984), (21717, 970584), (25308, 832866), (26232, 803529), (27432, 768379), (28194, 747612), (28956, 727938), (29511, 714248), (37592, 560709), (37962, 555244), (39348, 535686), (40441, 521208), (41534, 507492), (42291, 498408), (43434, 485292), (50616, 416433), (56388, 373806), (57912, 363969), (59022, 357124), (62301, 338328), (65151, 323528), (75924, 277622), (78696, 267843), (80882, 260604), (83068, 253746), (84582, 249204), (86868, 242646), (89281, 236088), (112776, 186903), (118044, 178562), (121323, 173736), (124602, 169164), (126873, 166136), (130302, 161764), (138811, 151848)]