21149120

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 112

約数和(自身を含む): 54315360

約数和(自身を除く): 33166240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 43, 53, 58, 64, 80, 86, 106, 116, 145, 160, 172, 212, 215, 232, 265, 290, 320, 344, 424, 430, 464, 530, 580, 688, 848, 860, 928, 1060, 1160, 1247, 1376, 1537, 1696, 1720, 1856, 2120, 2279, 2320, 2494, 2752, 3074, 3392, 3440, 4240, 4558, 4640, 4988, 6148, 6235, 6880, 7685, 8480, 9116, 9280, 9976, 11395, 12296, 12470, 13760, 15370, 16960, 18232, 19952, 22790, 24592, 24940, 30740, 36464, 39904, 45580, 49184, 49880, 61480, 66091, 72928, 79808, 91160, 98368, 99760, 122960, 132182, 145856, 182320, 199520, 245920, 264364, 330455, 364640, 399040, 491840, 528728, 660910, 729280, 1057456, 1321820, 2114912, 2643640, 4229824, 5287280, 10574560, 21149120]

約数ペア:

[(1, 21149120), (2, 10574560), (4, 5287280), (5, 4229824), (8, 2643640), (10, 2114912), (16, 1321820), (20, 1057456), (29, 729280), (32, 660910), (40, 528728), (43, 491840), (53, 399040), (58, 364640), (64, 330455), (80, 264364), (86, 245920), (106, 199520), (116, 182320), (145, 145856), (160, 132182), (172, 122960), (212, 99760), (215, 98368), (232, 91160), (265, 79808), (290, 72928), (320, 66091), (344, 61480), (424, 49880), (430, 49184), (464, 45580), (530, 39904), (580, 36464), (688, 30740), (848, 24940), (860, 24592), (928, 22790), (1060, 19952), (1160, 18232), (1247, 16960), (1376, 15370), (1537, 13760), (1696, 12470), (1720, 12296), (1856, 11395), (2120, 9976), (2279, 9280), (2320, 9116), (2494, 8480), (2752, 7685), (3074, 6880), (3392, 6235), (3440, 6148), (4240, 4988), (4558, 4640)]