21551222

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139943}}^1$

素因数の和:139963

約数の個数: 16

約数和(自身を含む): 40303872

約数和(自身を除く): 18752650

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139943, 279886, 979601, 1539373, 1959202, 3078746, 10775611, 21551222]

約数ペア:

[(1, 21551222), (2, 10775611), (7, 3078746), (11, 1959202), (14, 1539373), (22, 979601), (77, 279886), (154, 139943)]