21058790

素因数分解:

$2^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{9277}}^1$

素因数の和:9511

約数の個数: 16

約数和(自身を含む): 38076912

約数和(自身を除く): 17018122

約数列:

[1, 2, 5, 10, 227, 454, 1135, 2270, 9277, 18554, 46385, 92770, 2105879, 4211758, 10529395, 21058790]

約数ペア:

[(1, 21058790), (2, 10529395), (5, 4211758), (10, 2105879), (227, 92770), (454, 46385), (1135, 18554), (2270, 9277)]