19531521

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{127657}}^1$

素因数の和:127680

約数の個数: 12

約数和(自身を含む): 29871972

約数和(自身を除く): 10340451

約数列:

[1, 3, 9, 17, 51, 153, 127657, 382971, 1148913, 2170169, 6510507, 19531521]

約数ペア:

[(1, 19531521), (3, 6510507), (9, 2170169), (17, 1148913), (51, 382971), (153, 127657)]