42760143

素因数分解:

$3^4\times {\mathrm{643}}^1\times {\mathrm{821}}^1$

素因数の和:1476

約数の個数: 20

約数和(自身を含む): 64053528

約数和(自身を除く): 21293385

約数列:

[1, 3, 9, 27, 81, 643, 821, 1929, 2463, 5787, 7389, 17361, 22167, 52083, 66501, 527903, 1583709, 4751127, 14253381, 42760143]

約数ペア:

[(1, 42760143), (3, 14253381), (9, 4751127), (27, 1583709), (81, 527903), (643, 66501), (821, 52083), (1929, 22167), (2463, 17361), (5787, 7389)]