21495135

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10939}}^1$

素因数の和:11078

約数の個数: 16

約数和(自身を含む): 34657920

約数和(自身を除く): 13162785

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 10939, 32817, 54695, 164085, 1433009, 4299027, 7165045, 21495135]

約数ペア:

[(1, 21495135), (3, 7165045), (5, 4299027), (15, 1433009), (131, 164085), (393, 54695), (655, 32817), (1965, 10939)]