19870754

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1543}}^1$

素因数の和:1729

約数の個数: 16

約数和(自身を含む): 30682368

約数和(自身を除く): 10811614

約数列:

[1, 2, 47, 94, 137, 274, 1543, 3086, 6439, 12878, 72521, 145042, 211391, 422782, 9935377, 19870754]

約数ペア:

[(1, 19870754), (2, 9935377), (47, 422782), (94, 211391), (137, 145042), (274, 72521), (1543, 12878), (3086, 6439)]