21191040

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:321

約数の個数: 192

約数和(自身を含む): 79082640

約数和(自身を除く): 57891600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 283, 288, 312, 320, 360, 384, 390, 416, 468, 480, 520, 566, 576, 585, 624, 640, 720, 780, 832, 849, 936, 960, 1040, 1132, 1152, 1170, 1248, 1415, 1440, 1560, 1664, 1698, 1872, 1920, 2080, 2264, 2340, 2496, 2547, 2830, 2880, 3120, 3396, 3679, 3744, 4160, 4245, 4528, 4680, 4992, 5094, 5660, 5760, 6240, 6792, 7358, 7488, 8320, 8490, 9056, 9360, 10188, 11037, 11320, 12480, 12735, 13584, 14716, 14976, 16980, 18112, 18395, 18720, 20376, 22074, 22640, 24960, 25470, 27168, 29432, 33111, 33960, 36224, 36790, 37440, 40752, 44148, 45280, 50940, 54336, 55185, 58864, 66222, 67920, 73580, 74880, 81504, 88296, 90560, 101880, 108672, 110370, 117728, 132444, 135840, 147160, 163008, 165555, 176592, 181120, 203760, 220740, 235456, 264888, 271680, 294320, 326016, 331110, 353184, 407520, 441480, 470912, 529776, 543360, 588640, 662220, 706368, 815040, 882960, 1059552, 1177280, 1324440, 1412736, 1630080, 1765920, 2119104, 2354560, 2648880, 3531840, 4238208, 5297760, 7063680, 10595520, 21191040]

約数ペア:

[(1, 21191040), (2, 10595520), (3, 7063680), (4, 5297760), (5, 4238208), (6, 3531840), (8, 2648880), (9, 2354560), (10, 2119104), (12, 1765920), (13, 1630080), (15, 1412736), (16, 1324440), (18, 1177280), (20, 1059552), (24, 882960), (26, 815040), (30, 706368), (32, 662220), (36, 588640), (39, 543360), (40, 529776), (45, 470912), (48, 441480), (52, 407520), (60, 353184), (64, 331110), (65, 326016), (72, 294320), (78, 271680), (80, 264888), (90, 235456), (96, 220740), (104, 203760), (117, 181120), (120, 176592), (128, 165555), (130, 163008), (144, 147160), (156, 135840), (160, 132444), (180, 117728), (192, 110370), (195, 108672), (208, 101880), (234, 90560), (240, 88296), (260, 81504), (283, 74880), (288, 73580), (312, 67920), (320, 66222), (360, 58864), (384, 55185), (390, 54336), (416, 50940), (468, 45280), (480, 44148), (520, 40752), (566, 37440), (576, 36790), (585, 36224), (624, 33960), (640, 33111), (720, 29432), (780, 27168), (832, 25470), (849, 24960), (936, 22640), (960, 22074), (1040, 20376), (1132, 18720), (1152, 18395), (1170, 18112), (1248, 16980), (1415, 14976), (1440, 14716), (1560, 13584), (1664, 12735), (1698, 12480), (1872, 11320), (1920, 11037), (2080, 10188), (2264, 9360), (2340, 9056), (2496, 8490), (2547, 8320), (2830, 7488), (2880, 7358), (3120, 6792), (3396, 6240), (3679, 5760), (3744, 5660), (4160, 5094), (4245, 4992), (4528, 4680)]