20539323

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{17159}}^1$

素因数の和:17191

約数の個数: 24

約数和(自身を含む): 35692800

約数和(自身を除く): 15153477

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 17159, 51477, 120113, 154431, 326021, 360339, 978063, 1081017, 2282147, 2934189, 6846441, 20539323]

約数ペア:

[(1, 20539323), (3, 6846441), (7, 2934189), (9, 2282147), (19, 1081017), (21, 978063), (57, 360339), (63, 326021), (133, 154431), (171, 120113), (399, 51477), (1197, 17159)]