19984443

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{241}}^1$

素因数の和:586

約数の個数: 16

約数和(自身を含む): 27088512

約数和(自身を除く): 7104069

約数列:

[1, 3, 131, 211, 241, 393, 633, 723, 27641, 31571, 50851, 82923, 94713, 152553, 6661481, 19984443]

約数ペア:

[(1, 19984443), (3, 6661481), (131, 152553), (211, 94713), (241, 82923), (393, 50851), (633, 31571), (723, 27641)]