128517759

素因数分解:

$3^4\times {\mathrm{1229}}^1\times {\mathrm{1291}}^1$

素因数の和:2532

約数の個数: 20

約数和(自身を含む): 192288360

約数和(自身を除く): 63770601

約数列:

[1, 3, 9, 27, 81, 1229, 1291, 3687, 3873, 11061, 11619, 33183, 34857, 99549, 104571, 1586639, 4759917, 14279751, 42839253, 128517759]

約数ペア:

[(1, 128517759), (3, 42839253), (9, 14279751), (27, 4759917), (81, 1586639), (1229, 104571), (1291, 99549), (3687, 34857), (3873, 33183), (11061, 11619)]