18349863

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2903}}^1$

素因数の和:2963

約数の個数: 24

約数和(自身を含む): 29132928

約数和(自身を除く): 10783065

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 2903, 6321, 8709, 20321, 60963, 124829, 142247, 374487, 426741, 873803, 2621409, 6116621, 18349863]

約数ペア:

[(1, 18349863), (3, 6116621), (7, 2621409), (21, 873803), (43, 426741), (49, 374487), (129, 142247), (147, 124829), (301, 60963), (903, 20321), (2107, 8709), (2903, 6321)]