21255267

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{10559}}^1$

素因数の和:10634

約数の個数: 16

約数和(自身を含む): 31426560

約数和(自身を除く): 10171293

約数列:

[1, 3, 11, 33, 61, 183, 671, 2013, 10559, 31677, 116149, 348447, 644099, 1932297, 7085089, 21255267]

約数ペア:

[(1, 21255267), (3, 7085089), (11, 1932297), (33, 644099), (61, 348447), (183, 116149), (671, 31677), (2013, 10559)]