21334240

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2837}}^1$

素因数の和:2899

約数の個数: 48

約数和(自身を含む): 51492672

約数和(自身を除く): 30158432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2837, 3760, 5674, 7520, 11348, 14185, 22696, 28370, 45392, 56740, 90784, 113480, 133339, 226960, 266678, 453920, 533356, 666695, 1066712, 1333390, 2133424, 2666780, 4266848, 5333560, 10667120, 21334240]

約数ペア:

[(1, 21334240), (2, 10667120), (4, 5333560), (5, 4266848), (8, 2666780), (10, 2133424), (16, 1333390), (20, 1066712), (32, 666695), (40, 533356), (47, 453920), (80, 266678), (94, 226960), (160, 133339), (188, 113480), (235, 90784), (376, 56740), (470, 45392), (752, 28370), (940, 22696), (1504, 14185), (1880, 11348), (2837, 7520), (3760, 5674)]