2155280281

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1646509}}^1$

素因数の和:1646544

約数の個数: 16

約数和(自身を含む): 2845169280

約数和(自身を除く): 689888999

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 1646509, 11525563, 18111599, 27990653, 126781193, 195934571, 307897183, 2155280281]

約数ペア:

[(1, 2155280281), (7, 307897183), (11, 195934571), (17, 126781193), (77, 27990653), (119, 18111599), (187, 11525563), (1309, 1646509)]