21213360

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 320

約数和(自身を含む): 88565760

約数和(自身を除く): 67352400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 27, 28, 30, 35, 36, 40, 42, 45, 46, 48, 54, 56, 60, 61, 63, 69, 70, 72, 80, 84, 90, 92, 105, 108, 112, 115, 120, 122, 126, 135, 138, 140, 144, 161, 168, 180, 183, 184, 189, 207, 210, 216, 230, 240, 244, 252, 270, 276, 280, 305, 315, 322, 336, 345, 360, 366, 368, 378, 414, 420, 427, 432, 460, 483, 488, 504, 540, 549, 552, 560, 610, 621, 630, 644, 690, 720, 732, 756, 805, 828, 840, 854, 915, 920, 945, 966, 976, 1008, 1035, 1080, 1098, 1104, 1220, 1242, 1260, 1281, 1288, 1380, 1403, 1449, 1464, 1512, 1610, 1647, 1656, 1680, 1708, 1830, 1840, 1890, 1932, 2070, 2135, 2160, 2196, 2415, 2440, 2484, 2520, 2562, 2576, 2745, 2760, 2806, 2898, 2928, 3024, 3105, 3220, 3294, 3312, 3416, 3660, 3780, 3843, 3864, 4140, 4209, 4270, 4347, 4392, 4830, 4880, 4968, 5040, 5124, 5490, 5520, 5612, 5796, 6210, 6405, 6440, 6588, 6832, 7015, 7245, 7320, 7560, 7686, 7728, 8235, 8280, 8418, 8540, 8694, 8784, 9660, 9821, 9936, 10248, 10980, 11224, 11529, 11592, 12420, 12627, 12810, 12880, 13176, 14030, 14490, 14640, 15120, 15372, 16470, 16560, 16836, 17080, 17388, 19215, 19320, 19642, 20496, 21045, 21735, 21960, 22448, 23058, 23184, 24840, 25254, 25620, 26352, 28060, 28980, 29463, 30744, 32940, 33672, 34160, 34776, 37881, 38430, 38640, 39284, 42090, 43470, 43920, 46116, 49105, 49680, 50508, 51240, 56120, 57645, 57960, 58926, 61488, 63135, 65880, 67344, 69552, 75762, 76860, 78568, 84180, 86940, 88389, 92232, 98210, 101016, 102480, 112240, 115290, 115920, 117852, 126270, 131760, 147315, 151524, 153720, 157136, 168360, 173880, 176778, 184464, 189405, 196420, 202032, 230580, 235704, 252540, 265167, 294630, 303048, 307440, 336720, 347760, 353556, 378810, 392840, 441945, 461160, 471408, 505080, 530334, 589260, 606096, 707112, 757620, 785680, 883890, 922320, 1010160, 1060668, 1178520, 1325835, 1414224, 1515240, 1767780, 2121336, 2357040, 2651670, 3030480, 3535560, 4242672, 5303340, 7071120, 10606680, 21213360]

約数ペア:

[(1, 21213360), (2, 10606680), (3, 7071120), (4, 5303340), (5, 4242672), (6, 3535560), (7, 3030480), (8, 2651670), (9, 2357040), (10, 2121336), (12, 1767780), (14, 1515240), (15, 1414224), (16, 1325835), (18, 1178520), (20, 1060668), (21, 1010160), (23, 922320), (24, 883890), (27, 785680), (28, 757620), (30, 707112), (35, 606096), (36, 589260), (40, 530334), (42, 505080), (45, 471408), (46, 461160), (48, 441945), (54, 392840), (56, 378810), (60, 353556), (61, 347760), (63, 336720), (69, 307440), (70, 303048), (72, 294630), (80, 265167), (84, 252540), (90, 235704), (92, 230580), (105, 202032), (108, 196420), (112, 189405), (115, 184464), (120, 176778), (122, 173880), (126, 168360), (135, 157136), (138, 153720), (140, 151524), (144, 147315), (161, 131760), (168, 126270), (180, 117852), (183, 115920), (184, 115290), (189, 112240), (207, 102480), (210, 101016), (216, 98210), (230, 92232), (240, 88389), (244, 86940), (252, 84180), (270, 78568), (276, 76860), (280, 75762), (305, 69552), (315, 67344), (322, 65880), (336, 63135), (345, 61488), (360, 58926), (366, 57960), (368, 57645), (378, 56120), (414, 51240), (420, 50508), (427, 49680), (432, 49105), (460, 46116), (483, 43920), (488, 43470), (504, 42090), (540, 39284), (549, 38640), (552, 38430), (560, 37881), (610, 34776), (621, 34160), (630, 33672), (644, 32940), (690, 30744), (720, 29463), (732, 28980), (756, 28060), (805, 26352), (828, 25620), (840, 25254), (854, 24840), (915, 23184), (920, 23058), (945, 22448), (966, 21960), (976, 21735), (1008, 21045), (1035, 20496), (1080, 19642), (1098, 19320), (1104, 19215), (1220, 17388), (1242, 17080), (1260, 16836), (1281, 16560), (1288, 16470), (1380, 15372), (1403, 15120), (1449, 14640), (1464, 14490), (1512, 14030), (1610, 13176), (1647, 12880), (1656, 12810), (1680, 12627), (1708, 12420), (1830, 11592), (1840, 11529), (1890, 11224), (1932, 10980), (2070, 10248), (2135, 9936), (2160, 9821), (2196, 9660), (2415, 8784), (2440, 8694), (2484, 8540), (2520, 8418), (2562, 8280), (2576, 8235), (2745, 7728), (2760, 7686), (2806, 7560), (2898, 7320), (2928, 7245), (3024, 7015), (3105, 6832), (3220, 6588), (3294, 6440), (3312, 6405), (3416, 6210), (3660, 5796), (3780, 5612), (3843, 5520), (3864, 5490), (4140, 5124), (4209, 5040), (4270, 4968), (4347, 4880), (4392, 4830)]