21252091

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{659}}^1$

素因数の和:954

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 4598789

約数列:

[1, 7, 17, 119, 271, 659, 1897, 4607, 4613, 11203, 32249, 78421, 178589, 1250123, 3036013, 21252091]

約数ペア:

[(1, 21252091), (7, 3036013), (17, 1250123), (119, 178589), (271, 78421), (659, 32249), (1897, 11203), (4607, 4613)]