21399039

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2027}}^1$

素因数の和:2076

約数の個数: 32

約数和(自身を含む): 35043840

約数和(自身を除く): 13644801

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 2027, 3519, 6081, 10557, 18243, 34459, 46621, 54729, 103377, 139863, 310131, 419589, 792557, 930393, 1258767, 2377671, 7133013, 21399039]

約数ペア:

[(1, 21399039), (3, 7133013), (9, 2377671), (17, 1258767), (23, 930393), (27, 792557), (51, 419589), (69, 310131), (153, 139863), (207, 103377), (391, 54729), (459, 46621), (621, 34459), (1173, 18243), (2027, 10557), (3519, 6081)]