21909639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{1021}}^1$

素因数の和:1358

約数の個数: 16

約数和(自身を含む): 30610944

約数和(自身を除く): 8701305

約数列:

[1, 3, 23, 69, 311, 933, 1021, 3063, 7153, 21459, 23483, 70449, 317531, 952593, 7303213, 21909639]

約数ペア:

[(1, 21909639), (3, 7303213), (23, 952593), (69, 317531), (311, 70449), (933, 23483), (1021, 21459), (3063, 7153)]