20813373

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3271}}^1$

素因数の和:3385

約数の個数: 24

約数和(自身を含む): 34709376

約数和(自身を除く): 13896003

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3271, 6363, 9813, 22897, 29439, 68691, 206073, 330371, 991113, 2312597, 2973339, 6937791, 20813373]

約数ペア:

[(1, 20813373), (3, 6937791), (7, 2973339), (9, 2312597), (21, 991113), (63, 330371), (101, 206073), (303, 68691), (707, 29439), (909, 22897), (2121, 9813), (3271, 6363)]