20667728

素因数分解:

$2^4\times {\mathrm{191}}^1\times {\mathrm{6763}}^1$

素因数の和:6962

約数の個数: 20

約数和(自身を含む): 40259328

約数和(自身を除く): 19591600

約数列:

[1, 2, 4, 8, 16, 191, 382, 764, 1528, 3056, 6763, 13526, 27052, 54104, 108208, 1291733, 2583466, 5166932, 10333864, 20667728]

約数ペア:

[(1, 20667728), (2, 10333864), (4, 5166932), (8, 2583466), (16, 1291733), (191, 108208), (382, 54104), (764, 27052), (1528, 13526), (3056, 6763)]