20981034

素因数分解:

$2^1\times 3^2\times {\mathrm{163}}^1\times {\mathrm{7151}}^1$

素因数の和:7322

約数の個数: 24

約数和(自身を含む): 45744192

約数和(自身を除く): 24763158

約数列:

[1, 2, 3, 6, 9, 18, 163, 326, 489, 978, 1467, 2934, 7151, 14302, 21453, 42906, 64359, 128718, 1165613, 2331226, 3496839, 6993678, 10490517, 20981034]

約数ペア:

[(1, 20981034), (2, 10490517), (3, 6993678), (6, 3496839), (9, 2331226), (18, 1165613), (163, 128718), (326, 64359), (489, 42906), (978, 21453), (1467, 14302), (2934, 7151)]