20989471

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:538

約数の個数: 16

約数和(自身を含む): 23058400

約数和(自身を除く): 2068929

約数列:

[1, 19, 37, 73, 409, 703, 1387, 2701, 7771, 15133, 29857, 51319, 287527, 567283, 1104709, 20989471]

約数ペア:

[(1, 20989471), (19, 1104709), (37, 567283), (73, 287527), (409, 51319), (703, 29857), (1387, 15133), (2701, 7771)]