21485772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:388

約数の個数: 144

約数和(自身を含む): 70866432

約数和(自身を除く): 49380660

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 23, 28, 33, 36, 42, 44, 46, 63, 66, 69, 77, 84, 92, 99, 126, 132, 138, 154, 161, 198, 207, 231, 252, 253, 276, 308, 322, 337, 396, 414, 462, 483, 506, 644, 674, 693, 759, 828, 924, 966, 1011, 1012, 1348, 1386, 1449, 1518, 1771, 1932, 2022, 2277, 2359, 2772, 2898, 3033, 3036, 3542, 3707, 4044, 4554, 4718, 5313, 5796, 6066, 7077, 7084, 7414, 7751, 9108, 9436, 10626, 11121, 12132, 14154, 14828, 15502, 15939, 21231, 21252, 22242, 23253, 25949, 28308, 31004, 31878, 33363, 42462, 44484, 46506, 51898, 54257, 63756, 66726, 69759, 77847, 84924, 85261, 93012, 103796, 108514, 133452, 139518, 155694, 162771, 170522, 217028, 233541, 255783, 279036, 311388, 325542, 341044, 467082, 488313, 511566, 596827, 651084, 767349, 934164, 976626, 1023132, 1193654, 1534698, 1790481, 1953252, 2387308, 3069396, 3580962, 5371443, 7161924, 10742886, 21485772]

約数ペア:

[(1, 21485772), (2, 10742886), (3, 7161924), (4, 5371443), (6, 3580962), (7, 3069396), (9, 2387308), (11, 1953252), (12, 1790481), (14, 1534698), (18, 1193654), (21, 1023132), (22, 976626), (23, 934164), (28, 767349), (33, 651084), (36, 596827), (42, 511566), (44, 488313), (46, 467082), (63, 341044), (66, 325542), (69, 311388), (77, 279036), (84, 255783), (92, 233541), (99, 217028), (126, 170522), (132, 162771), (138, 155694), (154, 139518), (161, 133452), (198, 108514), (207, 103796), (231, 93012), (252, 85261), (253, 84924), (276, 77847), (308, 69759), (322, 66726), (337, 63756), (396, 54257), (414, 51898), (462, 46506), (483, 44484), (506, 42462), (644, 33363), (674, 31878), (693, 31004), (759, 28308), (828, 25949), (924, 23253), (966, 22242), (1011, 21252), (1012, 21231), (1348, 15939), (1386, 15502), (1449, 14828), (1518, 14154), (1771, 12132), (1932, 11121), (2022, 10626), (2277, 9436), (2359, 9108), (2772, 7751), (2898, 7414), (3033, 7084), (3036, 7077), (3542, 6066), (3707, 5796), (4044, 5313), (4554, 4718)]