21573357

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2503}}^1$

素因数の和:2549

約数の個数: 24

約数和(自身を含む): 32992704

約数和(自身を除く): 11419347

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2503, 2873, 7509, 8619, 32539, 42551, 97617, 127653, 423007, 553163, 1269021, 1659489, 7191119, 21573357]

約数ペア:

[(1, 21573357), (3, 7191119), (13, 1659489), (17, 1269021), (39, 553163), (51, 423007), (169, 127653), (221, 97617), (507, 42551), (663, 32539), (2503, 8619), (2873, 7509)]