20905083

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 31307328

約数和(自身を除く): 10402245

約数列:

[1, 3, 9, 47, 73, 141, 219, 423, 657, 677, 2031, 3431, 6093, 10293, 30879, 31819, 49421, 95457, 148263, 286371, 444789, 2322787, 6968361, 20905083]

約数ペア:

[(1, 20905083), (3, 6968361), (9, 2322787), (47, 444789), (73, 286371), (141, 148263), (219, 95457), (423, 49421), (657, 31819), (677, 30879), (2031, 10293), (3431, 6093)]