21419160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:657

約数の個数: 128

約数和(自身を含む): 75271680

約数和(自身を除く): 53852520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 593, 602, 645, 840, 860, 903, 1032, 1186, 1204, 1290, 1505, 1720, 1779, 1806, 2372, 2408, 2580, 2965, 3010, 3558, 3612, 4151, 4515, 4744, 5160, 5930, 6020, 7116, 7224, 8302, 8895, 9030, 11860, 12040, 12453, 14232, 16604, 17790, 18060, 20755, 23720, 24906, 25499, 33208, 35580, 36120, 41510, 49812, 50998, 62265, 71160, 76497, 83020, 99624, 101996, 124530, 127495, 152994, 166040, 178493, 203992, 249060, 254990, 305988, 356986, 382485, 498120, 509980, 535479, 611976, 713972, 764970, 892465, 1019960, 1070958, 1427944, 1529940, 1784930, 2141916, 2677395, 3059880, 3569860, 4283832, 5354790, 7139720, 10709580, 21419160]

約数ペア:

[(1, 21419160), (2, 10709580), (3, 7139720), (4, 5354790), (5, 4283832), (6, 3569860), (7, 3059880), (8, 2677395), (10, 2141916), (12, 1784930), (14, 1529940), (15, 1427944), (20, 1070958), (21, 1019960), (24, 892465), (28, 764970), (30, 713972), (35, 611976), (40, 535479), (42, 509980), (43, 498120), (56, 382485), (60, 356986), (70, 305988), (84, 254990), (86, 249060), (105, 203992), (120, 178493), (129, 166040), (140, 152994), (168, 127495), (172, 124530), (210, 101996), (215, 99624), (258, 83020), (280, 76497), (301, 71160), (344, 62265), (420, 50998), (430, 49812), (516, 41510), (593, 36120), (602, 35580), (645, 33208), (840, 25499), (860, 24906), (903, 23720), (1032, 20755), (1186, 18060), (1204, 17790), (1290, 16604), (1505, 14232), (1720, 12453), (1779, 12040), (1806, 11860), (2372, 9030), (2408, 8895), (2580, 8302), (2965, 7224), (3010, 7116), (3558, 6020), (3612, 5930), (4151, 5160), (4515, 4744)]