21167907

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8831}}^1$

素因数の和:8898

約数の個数: 16

約数和(自身を含む): 30523392

約数和(自身を除く): 9355485

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8831, 26493, 150127, 415057, 450381, 1245171, 7055969, 21167907]

約数ペア:

[(1, 21167907), (3, 7055969), (17, 1245171), (47, 450381), (51, 415057), (141, 150127), (799, 26493), (2397, 8831)]