21039252

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134867}}^1$

素因数の和:134887

約数の個数: 24

約数和(自身を含む): 52868256

約数和(自身を除く): 31829004

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134867, 269734, 404601, 539468, 809202, 1618404, 1753271, 3506542, 5259813, 7013084, 10519626, 21039252]

約数ペア:

[(1, 21039252), (2, 10519626), (3, 7013084), (4, 5259813), (6, 3506542), (12, 1753271), (13, 1618404), (26, 809202), (39, 539468), (52, 404601), (78, 269734), (156, 134867)]