20138489

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{739}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 24508800

約数和(自身を除く): 4370311

約数列:

[1, 7, 17, 119, 229, 739, 1603, 3893, 5173, 12563, 27251, 87941, 169231, 1184617, 2876927, 20138489]

約数ペア:

[(1, 20138489), (7, 2876927), (17, 1184617), (119, 169231), (229, 87941), (739, 27251), (1603, 12563), (3893, 5173)]