21777371

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1873}}^1$

素因数の和:2042

約数の個数: 16

約数和(自身を含む): 27345408

約数和(自身を除く): 5568037

約数列:

[1, 7, 11, 77, 151, 1057, 1661, 1873, 11627, 13111, 20603, 144221, 282823, 1979761, 3111053, 21777371]

約数ペア:

[(1, 21777371), (7, 3111053), (11, 1979761), (77, 282823), (151, 144221), (1057, 20603), (1661, 13111), (1873, 11627)]