28120212

素因数分解:

$2^2\times 3^2\times {\mathrm{781117}}^1$

素因数の和:781127

約数の個数: 18

約数和(自身を含む): 71081738

約数和(自身を除く): 42961526

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 781117, 1562234, 2343351, 3124468, 4686702, 7030053, 9373404, 14060106, 28120212]

約数ペア:

[(1, 28120212), (2, 14060106), (3, 9373404), (4, 7030053), (6, 4686702), (9, 3124468), (12, 2343351), (18, 1562234), (36, 781117)]