21172822

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{87491}}^1$

素因数の和:87515

約数の個数: 12

約数和(自身を含む): 34909308

約数和(自身を除く): 13736486

約数列:

[1, 2, 11, 22, 121, 242, 87491, 174982, 962401, 1924802, 10586411, 21172822]

約数ペア:

[(1, 21172822), (2, 10586411), (11, 1924802), (22, 962401), (121, 174982), (242, 87491)]