19856915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7451}}^1$

素因数の和:7510

約数の個数: 16

約数和(自身を含む): 26290656

約数和(自身を除く): 6433741

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 7451, 37255, 96863, 305491, 484315, 1527455, 3971383, 19856915]

約数ペア:

[(1, 19856915), (5, 3971383), (13, 1527455), (41, 484315), (65, 305491), (205, 96863), (533, 37255), (2665, 7451)]