16139921

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^3$

素因数の和:165

約数の個数: 16

約数和(自身を含む): 19536000

約数和(自身を除く): 3396079

約数列:

[1, 7, 29, 43, 203, 301, 1247, 1849, 8729, 12943, 53621, 79507, 375347, 556549, 2305703, 16139921]

約数ペア:

[(1, 16139921), (7, 2305703), (29, 556549), (43, 375347), (203, 79507), (301, 53621), (1247, 12943), (1849, 8729)]