21084088900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{5087}}^1$

素因数の和:5330

約数の個数: 144

約数和(自身を含む): 54268526592

約数和(自身を除く): 33184437692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 191, 217, 310, 350, 382, 434, 620, 700, 764, 775, 868, 955, 1085, 1337, 1550, 1910, 2170, 2674, 3100, 3820, 4340, 4775, 5087, 5348, 5425, 5921, 6685, 9550, 10174, 10850, 11842, 13370, 19100, 20348, 21700, 23684, 25435, 26740, 29605, 33425, 35609, 41447, 50870, 59210, 66850, 71218, 82894, 101740, 118420, 127175, 133700, 142436, 148025, 157697, 165788, 178045, 207235, 254350, 296050, 315394, 356090, 414470, 508700, 592100, 630788, 712180, 788485, 828940, 890225, 971617, 1036175, 1103879, 1576970, 1780450, 1943234, 2072350, 2207758, 3153940, 3560900, 3886468, 3942425, 4144700, 4415516, 4858085, 5519395, 6801319, 7884850, 9716170, 11038790, 13602638, 15769700, 19432340, 22077580, 24290425, 27205276, 27596975, 30120127, 34006595, 48580850, 55193950, 60240254, 68013190, 97161700, 110387900, 120480508, 136026380, 150600635, 170032975, 210840889, 301201270, 340065950, 421681778, 602402540, 680131900, 753003175, 843363556, 1054204445, 1506006350, 2108408890, 3012012700, 4216817780, 5271022225, 10542044450, 21084088900]

約数ペア:

[(1, 21084088900), (2, 10542044450), (4, 5271022225), (5, 4216817780), (7, 3012012700), (10, 2108408890), (14, 1506006350), (20, 1054204445), (25, 843363556), (28, 753003175), (31, 680131900), (35, 602402540), (50, 421681778), (62, 340065950), (70, 301201270), (100, 210840889), (124, 170032975), (140, 150600635), (155, 136026380), (175, 120480508), (191, 110387900), (217, 97161700), (310, 68013190), (350, 60240254), (382, 55193950), (434, 48580850), (620, 34006595), (700, 30120127), (764, 27596975), (775, 27205276), (868, 24290425), (955, 22077580), (1085, 19432340), (1337, 15769700), (1550, 13602638), (1910, 11038790), (2170, 9716170), (2674, 7884850), (3100, 6801319), (3820, 5519395), (4340, 4858085), (4775, 4415516), (5087, 4144700), (5348, 3942425), (5425, 3886468), (5921, 3560900), (6685, 3153940), (9550, 2207758), (10174, 2072350), (10850, 1943234), (11842, 1780450), (13370, 1576970), (19100, 1103879), (20348, 1036175), (21700, 971617), (23684, 890225), (25435, 828940), (26740, 788485), (29605, 712180), (33425, 630788), (35609, 592100), (41447, 508700), (50870, 414470), (59210, 356090), (66850, 315394), (71218, 296050), (82894, 254350), (101740, 207235), (118420, 178045), (127175, 165788), (133700, 157697), (142436, 148025)]