20902546

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{439}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 17113454

約数列:

[1, 2, 7, 14, 19, 38, 133, 179, 266, 358, 439, 878, 1253, 2506, 3073, 3401, 6146, 6802, 8341, 16682, 23807, 47614, 58387, 78581, 116774, 157162, 550067, 1100134, 1493039, 2986078, 10451273, 20902546]

約数ペア:

[(1, 20902546), (2, 10451273), (7, 2986078), (14, 1493039), (19, 1100134), (38, 550067), (133, 157162), (179, 116774), (266, 78581), (358, 58387), (439, 47614), (878, 23807), (1253, 16682), (2506, 8341), (3073, 6802), (3401, 6146)]