21049056

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 144

約数和(自身を含む): 70053984

約数和(自身を除く): 49004928

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 53, 56, 63, 72, 84, 96, 106, 112, 126, 144, 159, 168, 197, 212, 224, 252, 288, 318, 336, 371, 394, 424, 477, 504, 591, 636, 672, 742, 788, 848, 954, 1008, 1113, 1182, 1272, 1379, 1484, 1576, 1696, 1773, 1908, 2016, 2226, 2364, 2544, 2758, 2968, 3152, 3339, 3546, 3816, 4137, 4452, 4728, 5088, 5516, 5936, 6304, 6678, 7092, 7632, 8274, 8904, 9456, 10441, 11032, 11872, 12411, 13356, 14184, 15264, 16548, 17808, 18912, 20882, 22064, 24822, 26712, 28368, 31323, 33096, 35616, 41764, 44128, 49644, 53424, 56736, 62646, 66192, 73087, 83528, 93969, 99288, 106848, 125292, 132384, 146174, 167056, 187938, 198576, 219261, 250584, 292348, 334112, 375876, 397152, 438522, 501168, 584696, 657783, 751752, 877044, 1002336, 1169392, 1315566, 1503504, 1754088, 2338784, 2631132, 3007008, 3508176, 5262264, 7016352, 10524528, 21049056]

約数ペア:

[(1, 21049056), (2, 10524528), (3, 7016352), (4, 5262264), (6, 3508176), (7, 3007008), (8, 2631132), (9, 2338784), (12, 1754088), (14, 1503504), (16, 1315566), (18, 1169392), (21, 1002336), (24, 877044), (28, 751752), (32, 657783), (36, 584696), (42, 501168), (48, 438522), (53, 397152), (56, 375876), (63, 334112), (72, 292348), (84, 250584), (96, 219261), (106, 198576), (112, 187938), (126, 167056), (144, 146174), (159, 132384), (168, 125292), (197, 106848), (212, 99288), (224, 93969), (252, 83528), (288, 73087), (318, 66192), (336, 62646), (371, 56736), (394, 53424), (424, 49644), (477, 44128), (504, 41764), (591, 35616), (636, 33096), (672, 31323), (742, 28368), (788, 26712), (848, 24822), (954, 22064), (1008, 20882), (1113, 18912), (1182, 17808), (1272, 16548), (1379, 15264), (1484, 14184), (1576, 13356), (1696, 12411), (1773, 11872), (1908, 11032), (2016, 10441), (2226, 9456), (2364, 8904), (2544, 8274), (2758, 7632), (2968, 7092), (3152, 6678), (3339, 6304), (3546, 5936), (3816, 5516), (4137, 5088), (4452, 4728)]