21040921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 3064679

約数列:

[1, 11, 29, 71, 319, 781, 929, 2059, 10219, 22649, 26941, 65959, 296351, 725549, 1912811, 21040921]

約数ペア:

[(1, 21040921), (11, 1912811), (29, 725549), (71, 296351), (319, 65959), (781, 26941), (929, 22649), (2059, 10219)]