21487485

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34939}}^1$

素因数の和:34988

約数の個数: 16

約数和(自身を含む): 35219520

約数和(自身を除く): 13732035

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34939, 104817, 174695, 524085, 1432499, 4297497, 7162495, 21487485]

約数ペア:

[(1, 21487485), (3, 7162495), (5, 4297497), (15, 1432499), (41, 524085), (123, 174695), (205, 104817), (615, 34939)]