21326921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1601}}^1$

素因数の和:1792

約数の個数: 16

約数和(自身を含む): 26759808

約数和(自身を除く): 5432887

約数列:

[1, 7, 11, 77, 173, 1211, 1601, 1903, 11207, 13321, 17611, 123277, 276973, 1938811, 3046703, 21326921]

約数ペア:

[(1, 21326921), (7, 3046703), (11, 1938811), (77, 276973), (173, 123277), (1211, 17611), (1601, 13321), (1903, 11207)]