21685326

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{278017}}^1$

素因数の和:278035

約数の個数: 16

約数和(自身を含む): 46707024

約数和(自身を除く): 25021698

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 278017, 556034, 834051, 1668102, 3614221, 7228442, 10842663, 21685326]

約数ペア:

[(1, 21685326), (2, 10842663), (3, 7228442), (6, 3614221), (13, 1668102), (26, 834051), (39, 556034), (78, 278017)]