21140806

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1093}}^1$

素因数の和:1623

約数の個数: 16

約数和(自身を含む): 33476400

約数和(自身を除く): 12335594

約数列:

[1, 2, 19, 38, 509, 1018, 1093, 2186, 9671, 19342, 20767, 41534, 556337, 1112674, 10570403, 21140806]

約数ペア:

[(1, 21140806), (2, 10570403), (19, 1112674), (38, 556337), (509, 41534), (1018, 20767), (1093, 19342), (2186, 9671)]