20318872

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3391}}^1$

素因数の和:3511

約数の個数: 32

約数和(自身を含む): 43960320

約数和(自身を除く): 23641448

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 214, 428, 749, 856, 1498, 2996, 3391, 5992, 6782, 13564, 23737, 27128, 47474, 94948, 189896, 362837, 725674, 1451348, 2539859, 2902696, 5079718, 10159436, 20318872]

約数ペア:

[(1, 20318872), (2, 10159436), (4, 5079718), (7, 2902696), (8, 2539859), (14, 1451348), (28, 725674), (56, 362837), (107, 189896), (214, 94948), (428, 47474), (749, 27128), (856, 23737), (1498, 13564), (2996, 6782), (3391, 5992)]