21000638932

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1\times {\mathrm{661}}^1$

素因数の和:1066

約数の個数: 144

約数和(自身を含む): 47496238608

約数和(自身を除く): 26495599676

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 49, 52, 74, 91, 98, 148, 182, 196, 259, 337, 364, 481, 518, 637, 661, 674, 962, 1036, 1274, 1322, 1348, 1813, 1924, 2359, 2548, 2644, 3367, 3626, 4381, 4627, 4718, 6734, 7252, 8593, 8762, 9254, 9436, 12469, 13468, 16513, 17186, 17524, 18508, 23569, 24457, 24938, 30667, 32389, 33026, 34372, 47138, 48914, 49876, 60151, 61334, 64778, 66052, 87283, 94276, 97828, 120302, 122668, 129556, 162097, 171199, 174566, 214669, 222757, 240604, 317941, 324194, 342398, 349132, 421057, 429338, 445514, 610981, 635882, 648388, 684796, 842114, 858676, 891028, 1134679, 1198393, 1221962, 1271764, 1559299, 1684228, 2225587, 2269358, 2396786, 2443924, 2895841, 3118598, 4451174, 4538716, 4793572, 5791682, 6237196, 7942753, 8242009, 8902348, 10915093, 11583364, 15579109, 15885506, 16484018, 20270887, 21830186, 31158218, 31771012, 32968036, 40541774, 43660372, 57694063, 62316436, 81083548, 107146117, 115388126, 141896209, 214292234, 230776252, 283792418, 403858441, 428584468, 567584836, 750022819, 807716882, 1500045638, 1615433764, 3000091276, 5250159733, 10500319466, 21000638932]

約数ペア:

[(1, 21000638932), (2, 10500319466), (4, 5250159733), (7, 3000091276), (13, 1615433764), (14, 1500045638), (26, 807716882), (28, 750022819), (37, 567584836), (49, 428584468), (52, 403858441), (74, 283792418), (91, 230776252), (98, 214292234), (148, 141896209), (182, 115388126), (196, 107146117), (259, 81083548), (337, 62316436), (364, 57694063), (481, 43660372), (518, 40541774), (637, 32968036), (661, 31771012), (674, 31158218), (962, 21830186), (1036, 20270887), (1274, 16484018), (1322, 15885506), (1348, 15579109), (1813, 11583364), (1924, 10915093), (2359, 8902348), (2548, 8242009), (2644, 7942753), (3367, 6237196), (3626, 5791682), (4381, 4793572), (4627, 4538716), (4718, 4451174), (6734, 3118598), (7252, 2895841), (8593, 2443924), (8762, 2396786), (9254, 2269358), (9436, 2225587), (12469, 1684228), (13468, 1559299), (16513, 1271764), (17186, 1221962), (17524, 1198393), (18508, 1134679), (23569, 891028), (24457, 858676), (24938, 842114), (30667, 684796), (32389, 648388), (33026, 635882), (34372, 610981), (47138, 445514), (48914, 429338), (49876, 421057), (60151, 349132), (61334, 342398), (64778, 324194), (66052, 317941), (87283, 240604), (94276, 222757), (97828, 214669), (120302, 174566), (122668, 171199), (129556, 162097)]