20540247

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75239}}^1$

素因数の和:75262

約数の個数: 16

約数和(自身を含む): 33707520

約数和(自身を除く): 13167273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75239, 225717, 526673, 978107, 1580019, 2934321, 6846749, 20540247]

約数ペア:

[(1, 20540247), (3, 6846749), (7, 2934321), (13, 1580019), (21, 978107), (39, 526673), (91, 225717), (273, 75239)]