21158426

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1367}}^1$

素因数の和:1549

約数の個数: 16

約数和(自身を含む): 32503680

約数和(自身を除く): 11345254

約数列:

[1, 2, 71, 109, 142, 218, 1367, 2734, 7739, 15478, 97057, 149003, 194114, 298006, 10579213, 21158426]

約数ペア:

[(1, 21158426), (2, 10579213), (71, 298006), (109, 194114), (142, 149003), (218, 97057), (1367, 15478), (2734, 7739)]