21342729

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{499}}^1$

素因数の和:824

約数の個数: 16

約数和(自身を含む): 29160000

約数和(自身を除く): 7817271

約数列:

[1, 3, 53, 159, 269, 499, 807, 1497, 14257, 26447, 42771, 79341, 134231, 402693, 7114243, 21342729]

約数ペア:

[(1, 21342729), (3, 7114243), (53, 402693), (159, 134231), (269, 79341), (499, 42771), (807, 26447), (1497, 14257)]