21332218

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1657}}^1$

素因数の和:1857

約数の個数: 16

約数和(自身を含む): 33007464

約数和(自身を除く): 11675246

約数列:

[1, 2, 41, 82, 157, 314, 1657, 3314, 6437, 12874, 67937, 135874, 260149, 520298, 10666109, 21332218]

約数ペア:

[(1, 21332218), (2, 10666109), (41, 520298), (82, 260149), (157, 135874), (314, 67937), (1657, 12874), (3314, 6437)]