18700689

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{18947}}^1$

素因数の和:19004

約数の個数: 16

約数和(自身を含む): 29104128

約数和(自身を除く): 10403439

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 18947, 56841, 132629, 397887, 890509, 2671527, 6233563, 18700689]

約数ペア:

[(1, 18700689), (3, 6233563), (7, 2671527), (21, 890509), (47, 397887), (141, 132629), (329, 56841), (987, 18947)]