19800217

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 21669120

約数和(自身を除く): 1868903

約数列:

[1, 23, 37, 53, 439, 851, 1219, 1961, 10097, 16243, 23267, 45103, 373589, 535141, 860879, 19800217]

約数ペア:

[(1, 19800217), (23, 860879), (37, 535141), (53, 373589), (439, 45103), (851, 23267), (1219, 16243), (1961, 10097)]