16620891

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11813}}^1$

素因数の和:11890

約数の個数: 16

約数和(自身を含む): 25707264

約数和(自身を除く): 9086373

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 11813, 35439, 82691, 248073, 791471, 2374413, 5540297, 16620891]

約数ペア:

[(1, 16620891), (3, 5540297), (7, 2374413), (21, 791471), (67, 248073), (201, 82691), (469, 35439), (1407, 11813)]