128635587

素因数分解:

$3^3\times {\mathrm{109}}^2\times {\mathrm{401}}^1$

素因数の和:628

約数の個数: 24

約数和(自身を含む): 192815280

約数和(自身を除く): 64179693

約数列:

[1, 3, 9, 27, 109, 327, 401, 981, 1203, 2943, 3609, 10827, 11881, 35643, 43709, 106929, 131127, 320787, 393381, 1180143, 4764281, 14292843, 42878529, 128635587]

約数ペア:

[(1, 128635587), (3, 42878529), (9, 14292843), (27, 4764281), (109, 1180143), (327, 393381), (401, 320787), (981, 131127), (1203, 106929), (2943, 43709), (3609, 35643), (10827, 11881)]