20559945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{195809}}^1$

素因数の和:195824

約数の個数: 16

約数和(自身を含む): 37595520

約数和(自身を除く): 17035575

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 195809, 587427, 979045, 1370663, 2937135, 4111989, 6853315, 20559945]

約数ペア:

[(1, 20559945), (3, 6853315), (5, 4111989), (7, 2937135), (15, 1370663), (21, 979045), (35, 587427), (105, 195809)]