21654360

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:698

約数の個数: 192

約数和(自身を含む): 86748480

約数和(自身を除く): 65094120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 52, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 117, 120, 126, 130, 140, 156, 168, 180, 182, 195, 210, 234, 252, 260, 273, 280, 312, 315, 360, 364, 390, 420, 455, 468, 504, 520, 546, 585, 630, 661, 728, 780, 819, 840, 910, 936, 1092, 1170, 1260, 1322, 1365, 1560, 1638, 1820, 1983, 2184, 2340, 2520, 2644, 2730, 3276, 3305, 3640, 3966, 4095, 4627, 4680, 5288, 5460, 5949, 6552, 6610, 7932, 8190, 8593, 9254, 9915, 10920, 11898, 13220, 13881, 15864, 16380, 17186, 18508, 19830, 23135, 23796, 25779, 26440, 27762, 29745, 32760, 34372, 37016, 39660, 41643, 42965, 46270, 47592, 51558, 55524, 59490, 60151, 68744, 69405, 77337, 79320, 83286, 85930, 92540, 103116, 111048, 118980, 120302, 128895, 138810, 154674, 166572, 171860, 180453, 185080, 206232, 208215, 237960, 240604, 257790, 277620, 300755, 309348, 333144, 343720, 360906, 386685, 416430, 481208, 515580, 541359, 555240, 601510, 618696, 721812, 773370, 832860, 902265, 1031160, 1082718, 1203020, 1443624, 1546740, 1665720, 1804530, 2165436, 2406040, 2706795, 3093480, 3609060, 4330872, 5413590, 7218120, 10827180, 21654360]

約数ペア:

[(1, 21654360), (2, 10827180), (3, 7218120), (4, 5413590), (5, 4330872), (6, 3609060), (7, 3093480), (8, 2706795), (9, 2406040), (10, 2165436), (12, 1804530), (13, 1665720), (14, 1546740), (15, 1443624), (18, 1203020), (20, 1082718), (21, 1031160), (24, 902265), (26, 832860), (28, 773370), (30, 721812), (35, 618696), (36, 601510), (39, 555240), (40, 541359), (42, 515580), (45, 481208), (52, 416430), (56, 386685), (60, 360906), (63, 343720), (65, 333144), (70, 309348), (72, 300755), (78, 277620), (84, 257790), (90, 240604), (91, 237960), (104, 208215), (105, 206232), (117, 185080), (120, 180453), (126, 171860), (130, 166572), (140, 154674), (156, 138810), (168, 128895), (180, 120302), (182, 118980), (195, 111048), (210, 103116), (234, 92540), (252, 85930), (260, 83286), (273, 79320), (280, 77337), (312, 69405), (315, 68744), (360, 60151), (364, 59490), (390, 55524), (420, 51558), (455, 47592), (468, 46270), (504, 42965), (520, 41643), (546, 39660), (585, 37016), (630, 34372), (661, 32760), (728, 29745), (780, 27762), (819, 26440), (840, 25779), (910, 23796), (936, 23135), (1092, 19830), (1170, 18508), (1260, 17186), (1322, 16380), (1365, 15864), (1560, 13881), (1638, 13220), (1820, 11898), (1983, 10920), (2184, 9915), (2340, 9254), (2520, 8593), (2644, 8190), (2730, 7932), (3276, 6610), (3305, 6552), (3640, 5949), (3966, 5460), (4095, 5288), (4627, 4680)]