21495454

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1\times {\mathrm{653}}^1$

素因数の和:915

約数の個数: 16

約数和(自身を含む): 32804640

約数和(自身を除く): 11309186

約数列:

[1, 2, 109, 151, 218, 302, 653, 1306, 16459, 32918, 71177, 98603, 142354, 197206, 10747727, 21495454]

約数ペア:

[(1, 21495454), (2, 10747727), (109, 197206), (151, 142354), (218, 98603), (302, 71177), (653, 32918), (1306, 16459)]