21711487980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{128273}}^1$

素因数の和:128336

約数の個数: 192

約数和(自身を含む): 77235314688

約数和(自身を除く): 55523826708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 31, 35, 39, 42, 52, 60, 62, 65, 70, 78, 84, 91, 93, 105, 124, 130, 140, 155, 156, 182, 186, 195, 210, 217, 260, 273, 310, 364, 372, 390, 403, 420, 434, 455, 465, 546, 620, 651, 780, 806, 868, 910, 930, 1085, 1092, 1209, 1302, 1365, 1612, 1820, 1860, 2015, 2170, 2418, 2604, 2730, 2821, 3255, 4030, 4340, 4836, 5460, 5642, 6045, 6510, 8060, 8463, 11284, 12090, 13020, 14105, 16926, 24180, 28210, 33852, 42315, 56420, 84630, 128273, 169260, 256546, 384819, 513092, 641365, 769638, 897911, 1282730, 1539276, 1667549, 1795822, 1924095, 2565460, 2693733, 3335098, 3591644, 3848190, 3976463, 4489555, 5002647, 5387466, 6670196, 7696380, 7952926, 8337745, 8979110, 10005294, 10774932, 11672843, 11929389, 13468665, 15905852, 16675490, 17958220, 19882315, 20010588, 23345686, 23858778, 25013235, 26937330, 27835241, 33350980, 35018529, 39764630, 46691372, 47717556, 50026470, 51694019, 53874660, 55670482, 58364215, 59646945, 70037058, 79529260, 83505723, 100052940, 103388038, 111340964, 116728430, 119293890, 139176205, 140074116, 155082057, 167011446, 175092645, 206776076, 233456860, 238587780, 258470095, 278352410, 310164114, 334022892, 350185290, 361858133, 417528615, 516940190, 556704820, 620328228, 700370580, 723716266, 775410285, 835057230, 1033880380, 1085574399, 1447432532, 1550820570, 1670114460, 1809290665, 2171148798, 3101641140, 3618581330, 4342297596, 5427871995, 7237162660, 10855743990, 21711487980]

約数ペア:

[(1, 21711487980), (2, 10855743990), (3, 7237162660), (4, 5427871995), (5, 4342297596), (6, 3618581330), (7, 3101641140), (10, 2171148798), (12, 1809290665), (13, 1670114460), (14, 1550820570), (15, 1447432532), (20, 1085574399), (21, 1033880380), (26, 835057230), (28, 775410285), (30, 723716266), (31, 700370580), (35, 620328228), (39, 556704820), (42, 516940190), (52, 417528615), (60, 361858133), (62, 350185290), (65, 334022892), (70, 310164114), (78, 278352410), (84, 258470095), (91, 238587780), (93, 233456860), (105, 206776076), (124, 175092645), (130, 167011446), (140, 155082057), (155, 140074116), (156, 139176205), (182, 119293890), (186, 116728430), (195, 111340964), (210, 103388038), (217, 100052940), (260, 83505723), (273, 79529260), (310, 70037058), (364, 59646945), (372, 58364215), (390, 55670482), (403, 53874660), (420, 51694019), (434, 50026470), (455, 47717556), (465, 46691372), (546, 39764630), (620, 35018529), (651, 33350980), (780, 27835241), (806, 26937330), (868, 25013235), (910, 23858778), (930, 23345686), (1085, 20010588), (1092, 19882315), (1209, 17958220), (1302, 16675490), (1365, 15905852), (1612, 13468665), (1820, 11929389), (1860, 11672843), (2015, 10774932), (2170, 10005294), (2418, 8979110), (2604, 8337745), (2730, 7952926), (2821, 7696380), (3255, 6670196), (4030, 5387466), (4340, 5002647), (4836, 4489555), (5460, 3976463), (5642, 3848190), (6045, 3591644), (6510, 3335098), (8060, 2693733), (8463, 2565460), (11284, 1924095), (12090, 1795822), (13020, 1667549), (14105, 1539276), (16926, 1282730), (24180, 897911), (28210, 769638), (33852, 641365), (42315, 513092), (56420, 384819), (84630, 256546), (128273, 169260)]