27428828

素因数分解:

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

素因数の和:139961

約数の個数: 18

約数和(自身を含む): 55837656

約数和(自身を除く): 28408828

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 139943, 279886, 559772, 979601, 1959202, 3918404, 6857207, 13714414, 27428828]

約数ペア:

[(1, 27428828), (2, 13714414), (4, 6857207), (7, 3918404), (14, 1959202), (28, 979601), (49, 559772), (98, 279886), (196, 139943)]