21272493

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28027}}^1$

素因数の和:28064

約数の個数: 16

約数和(自身を含む): 32288256

約数和(自身を除く): 11015763

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28027, 84081, 308297, 644621, 924891, 1933863, 7090831, 21272493]

約数ペア:

[(1, 21272493), (3, 7090831), (11, 1933863), (23, 924891), (33, 644621), (69, 308297), (253, 84081), (759, 28027)]