20841891

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14813}}^1$

素因数の和:14890

約数の個数: 16

約数和(自身を含む): 32235264

約数和(自身を除く): 11393373

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14813, 44439, 103691, 311073, 992471, 2977413, 6947297, 20841891]

約数ペア:

[(1, 20841891), (3, 6947297), (7, 2977413), (21, 992471), (67, 311073), (201, 103691), (469, 44439), (1407, 14813)]