18029109

素因数分解:

$3^1\times 7^4\times {\mathrm{2503}}^1$

素因数の和:2534

約数の個数: 20

約数和(自身を含む): 28054816

約数和(自身を除く): 10025707

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 2503, 7203, 7509, 17521, 52563, 122647, 367941, 858529, 2575587, 6009703, 18029109]

約数ペア:

[(1, 18029109), (3, 6009703), (7, 2575587), (21, 858529), (49, 367941), (147, 122647), (343, 52563), (1029, 17521), (2401, 7509), (2503, 7203)]