18817209

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 27835392

約数和(自身を除く): 9018183

約数列:

[1, 3, 9, 101, 127, 163, 303, 381, 489, 909, 1143, 1467, 12827, 16463, 20701, 38481, 49389, 62103, 115443, 148167, 186309, 2090801, 6272403, 18817209]

約数ペア:

[(1, 18817209), (3, 6272403), (9, 2090801), (101, 186309), (127, 148167), (163, 115443), (303, 62103), (381, 49389), (489, 38481), (909, 20701), (1143, 16463), (1467, 12827)]