1999185921

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{3219301}}^1$

素因数の和:3219333

約数の個数: 16

約数和(自身を含む): 3090529920

約数和(自身を除く): 1091343999

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 3219301, 9657903, 28973709, 74043923, 86921127, 222131769, 666395307, 1999185921]

約数ペア:

[(1, 1999185921), (3, 666395307), (9, 222131769), (23, 86921127), (27, 74043923), (69, 28973709), (207, 9657903), (621, 3219301)]