21129054

素因数分解:

$2^1\times 3^1\times {\mathrm{331}}^1\times {\mathrm{10639}}^1$

素因数の和:10975

約数の個数: 16

約数和(自身を含む): 42389760

約数和(自身を除く): 21260706

約数列:

[1, 2, 3, 6, 331, 662, 993, 1986, 10639, 21278, 31917, 63834, 3521509, 7043018, 10564527, 21129054]

約数ペア:

[(1, 21129054), (2, 10564527), (3, 7043018), (6, 3521509), (331, 63834), (662, 31917), (993, 21278), (1986, 10639)]