21453660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:98

約数の個数: 240

約数和(自身を含む): 76839840

約数和(自身を除く): 55386180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 27, 30, 34, 36, 38, 41, 45, 51, 54, 57, 60, 68, 76, 81, 82, 85, 90, 95, 102, 108, 114, 123, 135, 153, 162, 164, 170, 171, 180, 190, 204, 205, 228, 246, 255, 270, 285, 306, 323, 324, 340, 342, 369, 380, 405, 410, 459, 492, 510, 513, 540, 570, 612, 615, 646, 684, 697, 738, 765, 779, 810, 820, 855, 918, 969, 1020, 1026, 1107, 1140, 1230, 1292, 1377, 1394, 1476, 1530, 1539, 1558, 1615, 1620, 1710, 1836, 1845, 1938, 2052, 2091, 2214, 2295, 2337, 2460, 2565, 2754, 2788, 2907, 3060, 3078, 3116, 3230, 3321, 3420, 3485, 3690, 3876, 3895, 4182, 4428, 4590, 4674, 4845, 5130, 5508, 5535, 5814, 6156, 6273, 6460, 6642, 6885, 6970, 7011, 7380, 7695, 7790, 8364, 8721, 9180, 9348, 9690, 10260, 10455, 11070, 11628, 11685, 12546, 13243, 13284, 13770, 13940, 14022, 14535, 15390, 15580, 16605, 17442, 18819, 19380, 20910, 21033, 22140, 23370, 25092, 26163, 26486, 27540, 28044, 29070, 30780, 31365, 33210, 34884, 35055, 37638, 39729, 41820, 42066, 43605, 46740, 52326, 52972, 56457, 58140, 62730, 63099, 66215, 66420, 70110, 75276, 79458, 84132, 87210, 94095, 104652, 105165, 112914, 119187, 125460, 126198, 130815, 132430, 140220, 158916, 174420, 188190, 198645, 210330, 225828, 238374, 252396, 261630, 264860, 282285, 315495, 357561, 376380, 397290, 420660, 476748, 523260, 564570, 595935, 630990, 715122, 794580, 1072683, 1129140, 1191870, 1261980, 1430244, 1787805, 2145366, 2383740, 3575610, 4290732, 5363415, 7151220, 10726830, 21453660]

約数ペア:

[(1, 21453660), (2, 10726830), (3, 7151220), (4, 5363415), (5, 4290732), (6, 3575610), (9, 2383740), (10, 2145366), (12, 1787805), (15, 1430244), (17, 1261980), (18, 1191870), (19, 1129140), (20, 1072683), (27, 794580), (30, 715122), (34, 630990), (36, 595935), (38, 564570), (41, 523260), (45, 476748), (51, 420660), (54, 397290), (57, 376380), (60, 357561), (68, 315495), (76, 282285), (81, 264860), (82, 261630), (85, 252396), (90, 238374), (95, 225828), (102, 210330), (108, 198645), (114, 188190), (123, 174420), (135, 158916), (153, 140220), (162, 132430), (164, 130815), (170, 126198), (171, 125460), (180, 119187), (190, 112914), (204, 105165), (205, 104652), (228, 94095), (246, 87210), (255, 84132), (270, 79458), (285, 75276), (306, 70110), (323, 66420), (324, 66215), (340, 63099), (342, 62730), (369, 58140), (380, 56457), (405, 52972), (410, 52326), (459, 46740), (492, 43605), (510, 42066), (513, 41820), (540, 39729), (570, 37638), (612, 35055), (615, 34884), (646, 33210), (684, 31365), (697, 30780), (738, 29070), (765, 28044), (779, 27540), (810, 26486), (820, 26163), (855, 25092), (918, 23370), (969, 22140), (1020, 21033), (1026, 20910), (1107, 19380), (1140, 18819), (1230, 17442), (1292, 16605), (1377, 15580), (1394, 15390), (1476, 14535), (1530, 14022), (1539, 13940), (1558, 13770), (1615, 13284), (1620, 13243), (1710, 12546), (1836, 11685), (1845, 11628), (1938, 11070), (2052, 10455), (2091, 10260), (2214, 9690), (2295, 9348), (2337, 9180), (2460, 8721), (2565, 8364), (2754, 7790), (2788, 7695), (2907, 7380), (3060, 7011), (3078, 6970), (3116, 6885), (3230, 6642), (3321, 6460), (3420, 6273), (3485, 6156), (3690, 5814), (3876, 5535), (3895, 5508), (4182, 5130), (4428, 4845), (4590, 4674)]