21529768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{207017}}^1$

素因数の和:207036

約数の個数: 16

約数和(自身を含む): 43473780

約数和(自身を除く): 21944012

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 207017, 414034, 828068, 1656136, 2691221, 5382442, 10764884, 21529768]

約数ペア:

[(1, 21529768), (2, 10764884), (4, 5382442), (8, 2691221), (13, 1656136), (26, 828068), (52, 414034), (104, 207017)]