218920986

素因数分解:

$2^1\times 3^2\times {\mathrm{311}}^1\times {\mathrm{39107}}^1$

素因数の和:39426

約数の個数: 24

約数和(自身を含む): 475866144

約数和(自身を除く): 256945158

約数列:

[1, 2, 3, 6, 9, 18, 311, 622, 933, 1866, 2799, 5598, 39107, 78214, 117321, 234642, 351963, 703926, 12162277, 24324554, 36486831, 72973662, 109460493, 218920986]

約数ペア:

[(1, 218920986), (2, 109460493), (3, 72973662), (6, 36486831), (9, 24324554), (18, 12162277), (311, 703926), (622, 351963), (933, 234642), (1866, 117321), (2799, 78214), (5598, 39107)]