215421808

素因数分解:

$2^4\times 7^1\times {\mathrm{1923409}}^1$

素因数の和:1923424

約数の個数: 20

約数和(自身を含む): 477005680

約数和(自身を除く): 261583872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1923409, 3846818, 7693636, 13463863, 15387272, 26927726, 30774544, 53855452, 107710904, 215421808]

約数ペア:

[(1, 215421808), (2, 107710904), (4, 53855452), (7, 30774544), (8, 26927726), (14, 15387272), (16, 13463863), (28, 7693636), (56, 3846818), (112, 1923409)]