20811236

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 37287936

約数和(自身を除く): 16476700

約数列:

[1, 2, 4, 71, 127, 142, 254, 284, 508, 577, 1154, 2308, 9017, 18034, 36068, 40967, 73279, 81934, 146558, 163868, 293116, 5202809, 10405618, 20811236]

約数ペア:

[(1, 20811236), (2, 10405618), (4, 5202809), (71, 293116), (127, 163868), (142, 146558), (254, 81934), (284, 73279), (508, 40967), (577, 36068), (1154, 18034), (2308, 9017)]