21016237788

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{21313}}^1$

素因数の和:21393

約数の個数: 216

約数和(自身を含む): 68102322288

約数和(自身を除く): 47086084500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 43, 49, 52, 63, 78, 84, 86, 91, 98, 117, 126, 129, 147, 156, 172, 182, 196, 234, 252, 258, 273, 294, 301, 364, 387, 441, 468, 516, 546, 559, 588, 602, 637, 774, 819, 882, 903, 1092, 1118, 1204, 1274, 1548, 1638, 1677, 1764, 1806, 1911, 2107, 2236, 2548, 2709, 3276, 3354, 3612, 3822, 3913, 4214, 5031, 5418, 5733, 6321, 6708, 7644, 7826, 8428, 10062, 10836, 11466, 11739, 12642, 15652, 18963, 20124, 21313, 22932, 23478, 25284, 27391, 35217, 37926, 42626, 46956, 54782, 63939, 70434, 75852, 82173, 85252, 109564, 127878, 140868, 149191, 164346, 191817, 246519, 255756, 277069, 298382, 328692, 383634, 447573, 493038, 554138, 596764, 767268, 831207, 895146, 916459, 986076, 1044337, 1108276, 1342719, 1662414, 1790292, 1832918, 1939483, 2088674, 2493621, 2685438, 2749377, 3133011, 3324828, 3665836, 3878966, 4177348, 4987242, 5370876, 5498754, 5818449, 6266022, 6415213, 7757932, 8248131, 9399033, 9974484, 10997508, 11636898, 11913967, 12532044, 12830426, 13576381, 16496262, 17455347, 18798066, 19245639, 23273796, 23827934, 25660852, 27152762, 32992524, 34910694, 35741901, 37596132, 38491278, 40729143, 44906491, 47655868, 54305524, 57736917, 69821388, 71483802, 76982556, 81458286, 83397769, 89812982, 107225703, 115473834, 122187429, 134719473, 142967604, 162916572, 166795538, 179625964, 214451406, 230947668, 244374858, 250193307, 269438946, 333591076, 404158419, 428902812, 488749716, 500386614, 538877892, 583784383, 750579921, 808316838, 1000773228, 1167568766, 1501159842, 1616633676, 1751353149, 2335137532, 3002319684, 3502706298, 5254059447, 7005412596, 10508118894, 21016237788]

約数ペア:

[(1, 21016237788), (2, 10508118894), (3, 7005412596), (4, 5254059447), (6, 3502706298), (7, 3002319684), (9, 2335137532), (12, 1751353149), (13, 1616633676), (14, 1501159842), (18, 1167568766), (21, 1000773228), (26, 808316838), (28, 750579921), (36, 583784383), (39, 538877892), (42, 500386614), (43, 488749716), (49, 428902812), (52, 404158419), (63, 333591076), (78, 269438946), (84, 250193307), (86, 244374858), (91, 230947668), (98, 214451406), (117, 179625964), (126, 166795538), (129, 162916572), (147, 142967604), (156, 134719473), (172, 122187429), (182, 115473834), (196, 107225703), (234, 89812982), (252, 83397769), (258, 81458286), (273, 76982556), (294, 71483802), (301, 69821388), (364, 57736917), (387, 54305524), (441, 47655868), (468, 44906491), (516, 40729143), (546, 38491278), (559, 37596132), (588, 35741901), (602, 34910694), (637, 32992524), (774, 27152762), (819, 25660852), (882, 23827934), (903, 23273796), (1092, 19245639), (1118, 18798066), (1204, 17455347), (1274, 16496262), (1548, 13576381), (1638, 12830426), (1677, 12532044), (1764, 11913967), (1806, 11636898), (1911, 10997508), (2107, 9974484), (2236, 9399033), (2548, 8248131), (2709, 7757932), (3276, 6415213), (3354, 6266022), (3612, 5818449), (3822, 5498754), (3913, 5370876), (4214, 4987242), (5031, 4177348), (5418, 3878966), (5733, 3665836), (6321, 3324828), (6708, 3133011), (7644, 2749377), (7826, 2685438), (8428, 2493621), (10062, 2088674), (10836, 1939483), (11466, 1832918), (11739, 1790292), (12642, 1662414), (15652, 1342719), (18963, 1108276), (20124, 1044337), (21313, 986076), (22932, 916459), (23478, 895146), (25284, 831207), (27391, 767268), (35217, 596764), (37926, 554138), (42626, 493038), (46956, 447573), (54782, 383634), (63939, 328692), (70434, 298382), (75852, 277069), (82173, 255756), (85252, 246519), (109564, 191817), (127878, 164346), (140868, 149191)]