20996868

素因数分解:

$2^2\times 3^1\times {\mathrm{263}}^1\times {\mathrm{6653}}^1$

素因数の和:6923

約数の個数: 24

約数和(自身を含む): 49186368

約数和(自身を除く): 28189500

約数列:

[1, 2, 3, 4, 6, 12, 263, 526, 789, 1052, 1578, 3156, 6653, 13306, 19959, 26612, 39918, 79836, 1749739, 3499478, 5249217, 6998956, 10498434, 20996868]

約数ペア:

[(1, 20996868), (2, 10498434), (3, 6998956), (4, 5249217), (6, 3499478), (12, 1749739), (263, 79836), (526, 39918), (789, 26612), (1052, 19959), (1578, 13306), (3156, 6653)]