21140534

素因数分解:

$2^1\times {\mathrm{53}}^3\times {\mathrm{71}}^1$

素因数の和:232

約数の個数: 16

約数和(自身を含む): 32775840

約数和(自身を除く): 11635306

約数列:

[1, 2, 53, 71, 106, 142, 2809, 3763, 5618, 7526, 148877, 199439, 297754, 398878, 10570267, 21140534]

約数ペア:

[(1, 21140534), (2, 10570267), (53, 398878), (71, 297754), (106, 199439), (142, 148877), (2809, 7526), (3763, 5618)]