21495544

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8167}}^1$

素因数の和:8227

約数の個数: 32

約数和(自身を含む): 47047680

約数和(自身を除く): 25552136

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 8167, 16334, 32668, 57169, 65336, 114338, 228676, 383849, 457352, 767698, 1535396, 2686943, 3070792, 5373886, 10747772, 21495544]

約数ペア:

[(1, 21495544), (2, 10747772), (4, 5373886), (7, 3070792), (8, 2686943), (14, 1535396), (28, 767698), (47, 457352), (56, 383849), (94, 228676), (188, 114338), (329, 65336), (376, 57169), (658, 32668), (1316, 16334), (2632, 8167)]