21272854

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1\times {\mathrm{739}}^1$

素因数の和:1167

約数の個数: 16

約数和(自身を含む): 32900400

約数和(自身を除く): 11627546

約数列:

[1, 2, 37, 74, 389, 739, 778, 1478, 14393, 27343, 28786, 54686, 287471, 574942, 10636427, 21272854]

約数ペア:

[(1, 21272854), (2, 10636427), (37, 574942), (74, 287471), (389, 54686), (739, 28786), (778, 27343), (1478, 14393)]