21483840

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:189

約数の個数: 224

約数和(自身を含む): 81930240

約数和(自身を除く): 60446400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 138, 139, 140, 160, 161, 168, 184, 192, 210, 224, 230, 240, 276, 278, 280, 320, 322, 336, 345, 368, 417, 420, 448, 460, 480, 483, 552, 556, 560, 644, 672, 690, 695, 736, 805, 834, 840, 920, 960, 966, 973, 1104, 1112, 1120, 1288, 1344, 1380, 1390, 1472, 1610, 1668, 1680, 1840, 1932, 1946, 2085, 2208, 2224, 2240, 2415, 2576, 2760, 2780, 2919, 3197, 3220, 3336, 3360, 3680, 3864, 3892, 4170, 4416, 4448, 4830, 4865, 5152, 5520, 5560, 5838, 6394, 6440, 6672, 6720, 7360, 7728, 7784, 8340, 8896, 9591, 9660, 9730, 10304, 11040, 11120, 11676, 12788, 12880, 13344, 14595, 15456, 15568, 15985, 16680, 19182, 19320, 19460, 22080, 22240, 22379, 23352, 25576, 25760, 26688, 29190, 30912, 31136, 31970, 33360, 38364, 38640, 38920, 44480, 44758, 46704, 47955, 51152, 51520, 58380, 62272, 63940, 66720, 67137, 76728, 77280, 77840, 89516, 93408, 95910, 102304, 111895, 116760, 127880, 133440, 134274, 153456, 154560, 155680, 179032, 186816, 191820, 204608, 223790, 233520, 255760, 268548, 306912, 311360, 335685, 358064, 383640, 447580, 467040, 511520, 537096, 613824, 671370, 716128, 767280, 895160, 934080, 1023040, 1074192, 1342740, 1432256, 1534560, 1790320, 2148384, 2685480, 3069120, 3580640, 4296768, 5370960, 7161280, 10741920, 21483840]

約数ペア:

[(1, 21483840), (2, 10741920), (3, 7161280), (4, 5370960), (5, 4296768), (6, 3580640), (7, 3069120), (8, 2685480), (10, 2148384), (12, 1790320), (14, 1534560), (15, 1432256), (16, 1342740), (20, 1074192), (21, 1023040), (23, 934080), (24, 895160), (28, 767280), (30, 716128), (32, 671370), (35, 613824), (40, 537096), (42, 511520), (46, 467040), (48, 447580), (56, 383640), (60, 358064), (64, 335685), (69, 311360), (70, 306912), (80, 268548), (84, 255760), (92, 233520), (96, 223790), (105, 204608), (112, 191820), (115, 186816), (120, 179032), (138, 155680), (139, 154560), (140, 153456), (160, 134274), (161, 133440), (168, 127880), (184, 116760), (192, 111895), (210, 102304), (224, 95910), (230, 93408), (240, 89516), (276, 77840), (278, 77280), (280, 76728), (320, 67137), (322, 66720), (336, 63940), (345, 62272), (368, 58380), (417, 51520), (420, 51152), (448, 47955), (460, 46704), (480, 44758), (483, 44480), (552, 38920), (556, 38640), (560, 38364), (644, 33360), (672, 31970), (690, 31136), (695, 30912), (736, 29190), (805, 26688), (834, 25760), (840, 25576), (920, 23352), (960, 22379), (966, 22240), (973, 22080), (1104, 19460), (1112, 19320), (1120, 19182), (1288, 16680), (1344, 15985), (1380, 15568), (1390, 15456), (1472, 14595), (1610, 13344), (1668, 12880), (1680, 12788), (1840, 11676), (1932, 11120), (1946, 11040), (2085, 10304), (2208, 9730), (2224, 9660), (2240, 9591), (2415, 8896), (2576, 8340), (2760, 7784), (2780, 7728), (2919, 7360), (3197, 6720), (3220, 6672), (3336, 6440), (3360, 6394), (3680, 5838), (3864, 5560), (3892, 5520), (4170, 5152), (4416, 4865), (4448, 4830)]