21043216

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{27983}}^1$

素因数の和:28038

約数の個数: 20

約数和(自身を含む): 41640192

約数和(自身を除く): 20596976

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 27983, 55966, 111932, 223864, 447728, 1315201, 2630402, 5260804, 10521608, 21043216]

約数ペア:

[(1, 21043216), (2, 10521608), (4, 5260804), (8, 2630402), (16, 1315201), (47, 447728), (94, 223864), (188, 111932), (376, 55966), (752, 27983)]