20385672

素因数分解:

$2^3\times 3^1\times {\mathrm{643}}^1\times {\mathrm{1321}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 51082080

約数和(自身を除く): 30696408

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 643, 1286, 1321, 1929, 2572, 2642, 3858, 3963, 5144, 5284, 7716, 7926, 10568, 15432, 15852, 31704, 849403, 1698806, 2548209, 3397612, 5096418, 6795224, 10192836, 20385672]

約数ペア:

[(1, 20385672), (2, 10192836), (3, 6795224), (4, 5096418), (6, 3397612), (8, 2548209), (12, 1698806), (24, 849403), (643, 31704), (1286, 15852), (1321, 15432), (1929, 10568), (2572, 7926), (2642, 7716), (3858, 5284), (3963, 5144)]