21845700

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 216

約数和(自身を含む): 75828480

約数和(自身を除く): 53982780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 29, 30, 31, 36, 45, 50, 54, 58, 60, 62, 75, 81, 87, 90, 93, 100, 108, 116, 124, 135, 145, 150, 155, 162, 174, 180, 186, 225, 243, 261, 270, 279, 290, 300, 310, 324, 348, 372, 405, 435, 450, 465, 486, 522, 540, 558, 580, 620, 675, 725, 775, 783, 810, 837, 870, 899, 900, 930, 972, 1044, 1116, 1215, 1305, 1350, 1395, 1450, 1550, 1566, 1620, 1674, 1740, 1798, 1860, 2025, 2175, 2325, 2349, 2430, 2511, 2610, 2697, 2700, 2790, 2900, 3100, 3132, 3348, 3596, 3915, 4050, 4185, 4350, 4495, 4650, 4698, 4860, 5022, 5220, 5394, 5580, 6075, 6525, 6975, 7047, 7533, 7830, 8091, 8100, 8370, 8700, 8990, 9300, 9396, 10044, 10788, 11745, 12150, 12555, 13050, 13485, 13950, 14094, 15066, 15660, 16182, 16740, 17980, 19575, 20925, 22475, 23490, 24273, 24300, 25110, 26100, 26970, 27900, 28188, 30132, 32364, 35235, 37665, 39150, 40455, 41850, 44950, 46980, 48546, 50220, 53940, 58725, 62775, 67425, 70470, 72819, 75330, 78300, 80910, 83700, 89900, 97092, 117450, 121365, 125550, 134850, 140940, 145638, 150660, 161820, 176175, 188325, 202275, 218457, 234900, 242730, 251100, 269700, 291276, 352350, 364095, 376650, 404550, 436914, 485460, 606825, 704700, 728190, 753300, 809100, 873828, 1092285, 1213650, 1456380, 1820475, 2184570, 2427300, 3640950, 4369140, 5461425, 7281900, 10922850, 21845700]

約数ペア:

[(1, 21845700), (2, 10922850), (3, 7281900), (4, 5461425), (5, 4369140), (6, 3640950), (9, 2427300), (10, 2184570), (12, 1820475), (15, 1456380), (18, 1213650), (20, 1092285), (25, 873828), (27, 809100), (29, 753300), (30, 728190), (31, 704700), (36, 606825), (45, 485460), (50, 436914), (54, 404550), (58, 376650), (60, 364095), (62, 352350), (75, 291276), (81, 269700), (87, 251100), (90, 242730), (93, 234900), (100, 218457), (108, 202275), (116, 188325), (124, 176175), (135, 161820), (145, 150660), (150, 145638), (155, 140940), (162, 134850), (174, 125550), (180, 121365), (186, 117450), (225, 97092), (243, 89900), (261, 83700), (270, 80910), (279, 78300), (290, 75330), (300, 72819), (310, 70470), (324, 67425), (348, 62775), (372, 58725), (405, 53940), (435, 50220), (450, 48546), (465, 46980), (486, 44950), (522, 41850), (540, 40455), (558, 39150), (580, 37665), (620, 35235), (675, 32364), (725, 30132), (775, 28188), (783, 27900), (810, 26970), (837, 26100), (870, 25110), (899, 24300), (900, 24273), (930, 23490), (972, 22475), (1044, 20925), (1116, 19575), (1215, 17980), (1305, 16740), (1350, 16182), (1395, 15660), (1450, 15066), (1550, 14094), (1566, 13950), (1620, 13485), (1674, 13050), (1740, 12555), (1798, 12150), (1860, 11745), (2025, 10788), (2175, 10044), (2325, 9396), (2349, 9300), (2430, 8990), (2511, 8700), (2610, 8370), (2697, 8100), (2700, 8091), (2790, 7830), (2900, 7533), (3100, 7047), (3132, 6975), (3348, 6525), (3596, 6075), (3915, 5580), (4050, 5394), (4185, 5220), (4350, 5022), (4495, 4860), (4650, 4698)]