21081705120

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{298777}}^1$

素因数の和:298812

約数の個数: 216

約数和(自身を含む): 83687120244

約数和(自身を除く): 62605415124

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 980, 1008, 1120, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2352, 2520, 2940, 3360, 3528, 3920, 4410, 4704, 5040, 5880, 7056, 7840, 8820, 10080, 11760, 14112, 17640, 23520, 35280, 70560, 298777, 597554, 896331, 1195108, 1493885, 1792662, 2091439, 2390216, 2688993, 2987770, 3585324, 4182878, 4481655, 4780432, 5377986, 5975540, 6274317, 7170648, 8365756, 8963310, 9560864, 10457195, 10755972, 11951080, 12548634, 13444965, 14341296, 14640073, 16731512, 17926620, 18822951, 20914390, 21511944, 23902160, 25097268, 26889930, 28682592, 29280146, 31371585, 33463024, 35853240, 37645902, 41828780, 43023888, 43920219, 47804320, 50194536, 53779860, 58560292, 62743170, 66926048, 71706480, 73200365, 75291804, 83657560, 86047776, 87840438, 94114755, 100389072, 107559720, 117120584, 125486340, 131760657, 143412960, 146400730, 150583608, 167315120, 175680876, 188229510, 200778144, 215119440, 219601095, 234241168, 250972680, 263521314, 292801460, 301167216, 334630240, 351361752, 376459020, 430238880, 439202190, 468482336, 501945360, 527042628, 585602920, 602334432, 658803285, 702723504, 752918040, 878404380, 1003890720, 1054085256, 1171205840, 1317606570, 1405447008, 1505836080, 1756808760, 2108170512, 2342411680, 2635213140, 3011672160, 3513617520, 4216341024, 5270426280, 7027235040, 10540852560, 21081705120]

約数ペア:

[(1, 21081705120), (2, 10540852560), (3, 7027235040), (4, 5270426280), (5, 4216341024), (6, 3513617520), (7, 3011672160), (8, 2635213140), (9, 2342411680), (10, 2108170512), (12, 1756808760), (14, 1505836080), (15, 1405447008), (16, 1317606570), (18, 1171205840), (20, 1054085256), (21, 1003890720), (24, 878404380), (28, 752918040), (30, 702723504), (32, 658803285), (35, 602334432), (36, 585602920), (40, 527042628), (42, 501945360), (45, 468482336), (48, 439202190), (49, 430238880), (56, 376459020), (60, 351361752), (63, 334630240), (70, 301167216), (72, 292801460), (80, 263521314), (84, 250972680), (90, 234241168), (96, 219601095), (98, 215119440), (105, 200778144), (112, 188229510), (120, 175680876), (126, 167315120), (140, 150583608), (144, 146400730), (147, 143412960), (160, 131760657), (168, 125486340), (180, 117120584), (196, 107559720), (210, 100389072), (224, 94114755), (240, 87840438), (245, 86047776), (252, 83657560), (280, 75291804), (288, 73200365), (294, 71706480), (315, 66926048), (336, 62743170), (360, 58560292), (392, 53779860), (420, 50194536), (441, 47804320), (480, 43920219), (490, 43023888), (504, 41828780), (560, 37645902), (588, 35853240), (630, 33463024), (672, 31371585), (720, 29280146), (735, 28682592), (784, 26889930), (840, 25097268), (882, 23902160), (980, 21511944), (1008, 20914390), (1120, 18822951), (1176, 17926620), (1260, 16731512), (1440, 14640073), (1470, 14341296), (1568, 13444965), (1680, 12548634), (1764, 11951080), (1960, 10755972), (2016, 10457195), (2205, 9560864), (2352, 8963310), (2520, 8365756), (2940, 7170648), (3360, 6274317), (3528, 5975540), (3920, 5377986), (4410, 4780432), (4704, 4481655), (5040, 4182878), (5880, 3585324), (7056, 2987770), (7840, 2688993), (8820, 2390216), (10080, 2091439), (11760, 1792662), (14112, 1493885), (17640, 1195108), (23520, 896331), (35280, 597554), (70560, 298777)]