21322840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 192

約数和(自身を含む): 65007360

約数和(自身を除く): 43684520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 43, 44, 46, 49, 55, 56, 70, 77, 86, 88, 92, 98, 110, 115, 140, 154, 161, 172, 184, 196, 215, 220, 230, 245, 253, 280, 301, 308, 322, 344, 385, 392, 430, 440, 460, 473, 490, 506, 539, 602, 616, 644, 770, 805, 860, 920, 946, 980, 989, 1012, 1078, 1127, 1204, 1265, 1288, 1505, 1540, 1610, 1720, 1771, 1892, 1960, 1978, 2024, 2107, 2156, 2254, 2365, 2408, 2530, 2695, 3010, 3080, 3220, 3311, 3542, 3784, 3956, 4214, 4312, 4508, 4730, 4945, 5060, 5390, 5635, 6020, 6440, 6622, 6923, 7084, 7912, 8428, 8855, 9016, 9460, 9890, 10120, 10535, 10780, 10879, 11270, 12040, 12397, 13244, 13846, 14168, 16555, 16856, 17710, 18920, 19780, 21070, 21560, 21758, 22540, 23177, 24794, 26488, 27692, 33110, 34615, 35420, 39560, 42140, 43516, 45080, 46354, 48461, 49588, 54395, 55384, 61985, 66220, 69230, 70840, 76153, 84280, 87032, 92708, 96922, 99176, 108790, 115885, 123970, 132440, 138460, 152306, 185416, 193844, 217580, 231770, 242305, 247940, 276920, 304612, 380765, 387688, 435160, 463540, 484610, 495880, 533071, 609224, 761530, 927080, 969220, 1066142, 1523060, 1938440, 2132284, 2665355, 3046120, 4264568, 5330710, 10661420, 21322840]

約数ペア:

[(1, 21322840), (2, 10661420), (4, 5330710), (5, 4264568), (7, 3046120), (8, 2665355), (10, 2132284), (11, 1938440), (14, 1523060), (20, 1066142), (22, 969220), (23, 927080), (28, 761530), (35, 609224), (40, 533071), (43, 495880), (44, 484610), (46, 463540), (49, 435160), (55, 387688), (56, 380765), (70, 304612), (77, 276920), (86, 247940), (88, 242305), (92, 231770), (98, 217580), (110, 193844), (115, 185416), (140, 152306), (154, 138460), (161, 132440), (172, 123970), (184, 115885), (196, 108790), (215, 99176), (220, 96922), (230, 92708), (245, 87032), (253, 84280), (280, 76153), (301, 70840), (308, 69230), (322, 66220), (344, 61985), (385, 55384), (392, 54395), (430, 49588), (440, 48461), (460, 46354), (473, 45080), (490, 43516), (506, 42140), (539, 39560), (602, 35420), (616, 34615), (644, 33110), (770, 27692), (805, 26488), (860, 24794), (920, 23177), (946, 22540), (980, 21758), (989, 21560), (1012, 21070), (1078, 19780), (1127, 18920), (1204, 17710), (1265, 16856), (1288, 16555), (1505, 14168), (1540, 13846), (1610, 13244), (1720, 12397), (1771, 12040), (1892, 11270), (1960, 10879), (1978, 10780), (2024, 10535), (2107, 10120), (2156, 9890), (2254, 9460), (2365, 9016), (2408, 8855), (2530, 8428), (2695, 7912), (3010, 7084), (3080, 6923), (3220, 6622), (3311, 6440), (3542, 6020), (3784, 5635), (3956, 5390), (4214, 5060), (4312, 4945), (4508, 4730)]