21138720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1002

約数の個数: 96

約数和(自身を含む): 68076288

約数和(自身を除く): 46937568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 80, 94, 96, 120, 141, 160, 188, 235, 240, 282, 376, 470, 480, 564, 705, 752, 937, 940, 1128, 1410, 1504, 1874, 1880, 2256, 2811, 2820, 3748, 3760, 4512, 4685, 5622, 5640, 7496, 7520, 9370, 11244, 11280, 14055, 14992, 18740, 22488, 22560, 28110, 29984, 37480, 44039, 44976, 56220, 74960, 88078, 89952, 112440, 132117, 149920, 176156, 220195, 224880, 264234, 352312, 440390, 449760, 528468, 660585, 704624, 880780, 1056936, 1321170, 1409248, 1761560, 2113872, 2642340, 3523120, 4227744, 5284680, 7046240, 10569360, 21138720]

約数ペア:

[(1, 21138720), (2, 10569360), (3, 7046240), (4, 5284680), (5, 4227744), (6, 3523120), (8, 2642340), (10, 2113872), (12, 1761560), (15, 1409248), (16, 1321170), (20, 1056936), (24, 880780), (30, 704624), (32, 660585), (40, 528468), (47, 449760), (48, 440390), (60, 352312), (80, 264234), (94, 224880), (96, 220195), (120, 176156), (141, 149920), (160, 132117), (188, 112440), (235, 89952), (240, 88078), (282, 74960), (376, 56220), (470, 44976), (480, 44039), (564, 37480), (705, 29984), (752, 28110), (937, 22560), (940, 22488), (1128, 18740), (1410, 14992), (1504, 14055), (1874, 11280), (1880, 11244), (2256, 9370), (2811, 7520), (2820, 7496), (3748, 5640), (3760, 5622), (4512, 4685)]