21351536

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28393}}^1$

素因数の和:28448

約数の個数: 20

約数和(自身を含む): 42250272

約数和(自身を除く): 20898736

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28393, 56786, 113572, 227144, 454288, 1334471, 2668942, 5337884, 10675768, 21351536]

約数ペア:

[(1, 21351536), (2, 10675768), (4, 5337884), (8, 2668942), (16, 1334471), (47, 454288), (94, 227144), (188, 113572), (376, 56786), (752, 28393)]