20955891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{8699}}^1$

素因数の和:8786

約数の個数: 16

約数和(自身を含む): 30902400

約数和(自身を除く): 9946509

約数列:

[1, 3, 11, 33, 73, 219, 803, 2409, 8699, 26097, 95689, 287067, 635027, 1905081, 6985297, 20955891]

約数ペア:

[(1, 20955891), (3, 6985297), (11, 1905081), (33, 635027), (73, 287067), (219, 95689), (803, 26097), (2409, 8699)]