21168609

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{91639}}^1$

素因数の和:91660

約数の個数: 16

約数和(自身を含む): 35189760

約数和(自身を除く): 14021151

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 91639, 274917, 641473, 1008029, 1924419, 3024087, 7056203, 21168609]

約数ペア:

[(1, 21168609), (3, 7056203), (7, 3024087), (11, 1924419), (21, 1008029), (33, 641473), (77, 274917), (231, 91639)]