291245139

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{211507}}^1$

素因数の和:211536

約数の個数: 20

約数和(自身を含む): 460664424

約数和(自身を除く): 169419285

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 211507, 634521, 1903563, 3595619, 5710689, 10786857, 17132067, 32360571, 97081713, 291245139]

約数ペア:

[(1, 291245139), (3, 97081713), (9, 32360571), (17, 17132067), (27, 10786857), (51, 5710689), (81, 3595619), (153, 1903563), (459, 634521), (1377, 211507)]