20758115

素因数分解:

$5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{439}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 29193120

約数和(自身を除く): 8435005

約数列:

[1, 5, 7, 35, 49, 193, 245, 439, 965, 1351, 2195, 3073, 6755, 9457, 15365, 21511, 47285, 84727, 107555, 423635, 593089, 2965445, 4151623, 20758115]

約数ペア:

[(1, 20758115), (5, 4151623), (7, 2965445), (35, 593089), (49, 423635), (193, 107555), (245, 84727), (439, 47285), (965, 21511), (1351, 15365), (2195, 9457), (3073, 6755)]