21668220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{593}}^1$

素因数の和:644

約数の個数: 144

約数和(自身を含む): 77837760

約数和(自身を除く): 56169540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 58, 60, 63, 70, 84, 87, 90, 105, 116, 126, 140, 145, 174, 180, 203, 210, 252, 261, 290, 315, 348, 406, 420, 435, 522, 580, 593, 609, 630, 812, 870, 1015, 1044, 1186, 1218, 1260, 1305, 1740, 1779, 1827, 2030, 2372, 2436, 2610, 2965, 3045, 3558, 3654, 4060, 4151, 5220, 5337, 5930, 6090, 7116, 7308, 8302, 8895, 9135, 10674, 11860, 12180, 12453, 16604, 17197, 17790, 18270, 20755, 21348, 24906, 26685, 34394, 35580, 36540, 37359, 41510, 49812, 51591, 53370, 62265, 68788, 74718, 83020, 85985, 103182, 106740, 120379, 124530, 149436, 154773, 171970, 186795, 206364, 240758, 249060, 257955, 309546, 343940, 361137, 373590, 481516, 515910, 601895, 619092, 722274, 747180, 773865, 1031820, 1083411, 1203790, 1444548, 1547730, 1805685, 2166822, 2407580, 3095460, 3611370, 4333644, 5417055, 7222740, 10834110, 21668220]

約数ペア:

[(1, 21668220), (2, 10834110), (3, 7222740), (4, 5417055), (5, 4333644), (6, 3611370), (7, 3095460), (9, 2407580), (10, 2166822), (12, 1805685), (14, 1547730), (15, 1444548), (18, 1203790), (20, 1083411), (21, 1031820), (28, 773865), (29, 747180), (30, 722274), (35, 619092), (36, 601895), (42, 515910), (45, 481516), (58, 373590), (60, 361137), (63, 343940), (70, 309546), (84, 257955), (87, 249060), (90, 240758), (105, 206364), (116, 186795), (126, 171970), (140, 154773), (145, 149436), (174, 124530), (180, 120379), (203, 106740), (210, 103182), (252, 85985), (261, 83020), (290, 74718), (315, 68788), (348, 62265), (406, 53370), (420, 51591), (435, 49812), (522, 41510), (580, 37359), (593, 36540), (609, 35580), (630, 34394), (812, 26685), (870, 24906), (1015, 21348), (1044, 20755), (1186, 18270), (1218, 17790), (1260, 17197), (1305, 16604), (1740, 12453), (1779, 12180), (1827, 11860), (2030, 10674), (2372, 9135), (2436, 8895), (2610, 8302), (2965, 7308), (3045, 7116), (3558, 6090), (3654, 5930), (4060, 5337), (4151, 5220)]