21026160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 240

約数和(自身を含む): 78343200

約数和(自身を除く): 57317040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 29, 30, 36, 38, 40, 45, 48, 53, 57, 58, 60, 72, 76, 80, 87, 90, 95, 106, 114, 116, 120, 144, 145, 152, 159, 171, 174, 180, 190, 212, 228, 232, 240, 261, 265, 285, 290, 304, 318, 342, 348, 360, 380, 424, 435, 456, 464, 477, 522, 530, 551, 570, 580, 636, 684, 696, 720, 760, 795, 848, 855, 870, 912, 954, 1007, 1044, 1060, 1102, 1140, 1160, 1272, 1305, 1368, 1392, 1520, 1537, 1590, 1653, 1710, 1740, 1908, 2014, 2088, 2120, 2204, 2280, 2320, 2385, 2544, 2610, 2736, 2755, 3021, 3074, 3180, 3306, 3420, 3480, 3816, 4028, 4176, 4240, 4408, 4560, 4611, 4770, 4959, 5035, 5220, 5510, 6042, 6148, 6360, 6612, 6840, 6960, 7632, 7685, 8056, 8265, 8816, 9063, 9222, 9540, 9918, 10070, 10440, 11020, 12084, 12296, 12720, 13224, 13680, 13833, 15105, 15370, 16112, 16530, 18126, 18444, 19080, 19836, 20140, 20880, 22040, 23055, 24168, 24592, 24795, 26448, 27666, 29203, 30210, 30740, 33060, 36252, 36888, 38160, 39672, 40280, 44080, 45315, 46110, 48336, 49590, 55332, 58406, 60420, 61480, 66120, 69165, 72504, 73776, 79344, 80560, 87609, 90630, 92220, 99180, 110664, 116812, 120840, 122960, 132240, 138330, 145008, 146015, 175218, 181260, 184440, 198360, 221328, 233624, 241680, 262827, 276660, 292030, 350436, 362520, 368880, 396720, 438045, 467248, 525654, 553320, 584060, 700872, 725040, 876090, 1051308, 1106640, 1168120, 1314135, 1401744, 1752180, 2102616, 2336240, 2628270, 3504360, 4205232, 5256540, 7008720, 10513080, 21026160]

約数ペア:

[(1, 21026160), (2, 10513080), (3, 7008720), (4, 5256540), (5, 4205232), (6, 3504360), (8, 2628270), (9, 2336240), (10, 2102616), (12, 1752180), (15, 1401744), (16, 1314135), (18, 1168120), (19, 1106640), (20, 1051308), (24, 876090), (29, 725040), (30, 700872), (36, 584060), (38, 553320), (40, 525654), (45, 467248), (48, 438045), (53, 396720), (57, 368880), (58, 362520), (60, 350436), (72, 292030), (76, 276660), (80, 262827), (87, 241680), (90, 233624), (95, 221328), (106, 198360), (114, 184440), (116, 181260), (120, 175218), (144, 146015), (145, 145008), (152, 138330), (159, 132240), (171, 122960), (174, 120840), (180, 116812), (190, 110664), (212, 99180), (228, 92220), (232, 90630), (240, 87609), (261, 80560), (265, 79344), (285, 73776), (290, 72504), (304, 69165), (318, 66120), (342, 61480), (348, 60420), (360, 58406), (380, 55332), (424, 49590), (435, 48336), (456, 46110), (464, 45315), (477, 44080), (522, 40280), (530, 39672), (551, 38160), (570, 36888), (580, 36252), (636, 33060), (684, 30740), (696, 30210), (720, 29203), (760, 27666), (795, 26448), (848, 24795), (855, 24592), (870, 24168), (912, 23055), (954, 22040), (1007, 20880), (1044, 20140), (1060, 19836), (1102, 19080), (1140, 18444), (1160, 18126), (1272, 16530), (1305, 16112), (1368, 15370), (1392, 15105), (1520, 13833), (1537, 13680), (1590, 13224), (1653, 12720), (1710, 12296), (1740, 12084), (1908, 11020), (2014, 10440), (2088, 10070), (2120, 9918), (2204, 9540), (2280, 9222), (2320, 9063), (2385, 8816), (2544, 8265), (2610, 8056), (2736, 7685), (2755, 7632), (3021, 6960), (3074, 6840), (3180, 6612), (3306, 6360), (3420, 6148), (3480, 6042), (3816, 5510), (4028, 5220), (4176, 5035), (4240, 4959), (4408, 4770), (4560, 4611)]