20495002

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13121}}^1$

素因数の和:13205

約数の個数: 16

約数和(自身を含む): 34012224

約数和(自身を除く): 13517222

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13121, 26242, 144331, 288662, 931591, 1863182, 10247501, 20495002]

約数ペア:

[(1, 20495002), (2, 10247501), (11, 1863182), (22, 931591), (71, 288662), (142, 144331), (781, 26242), (1562, 13121)]