21071792

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4003}}^1$

素因数の和:4065

約数の個数: 40

約数和(自身を含む): 47663616

約数和(自身を除く): 26591824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 4003, 5264, 8006, 16012, 28021, 32024, 56042, 64048, 112084, 188141, 224168, 376282, 448336, 752564, 1316987, 1505128, 2633974, 3010256, 5267948, 10535896, 21071792]

約数ペア:

[(1, 21071792), (2, 10535896), (4, 5267948), (7, 3010256), (8, 2633974), (14, 1505128), (16, 1316987), (28, 752564), (47, 448336), (56, 376282), (94, 224168), (112, 188141), (188, 112084), (329, 64048), (376, 56042), (658, 32024), (752, 28021), (1316, 16012), (2632, 8006), (4003, 5264)]