20212491

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11027}}^1$

素因数の和:11090

約数の個数: 16

約数和(自身を含む): 29643264

約数和(自身を除く): 9430773

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11027, 33081, 143351, 430053, 518269, 1554807, 6737497, 20212491]

約数ペア:

[(1, 20212491), (3, 6737497), (13, 1554807), (39, 518269), (47, 430053), (141, 143351), (611, 33081), (1833, 11027)]