21315927

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{743}}^1$

素因数の和:950

約数の個数: 16

約数和(自身を含む): 29069568

約数和(自身を除く): 7753641

約数列:

[1, 3, 73, 131, 219, 393, 743, 2229, 9563, 28689, 54239, 97333, 162717, 291999, 7105309, 21315927]

約数ペア:

[(1, 21315927), (3, 7105309), (73, 291999), (131, 162717), (219, 97333), (393, 54239), (743, 28689), (2229, 9563)]