21289782

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66949}}^1$

素因数の和:67007

約数の個数: 16

約数和(自身を含む): 43383600

約数和(自身を除く): 22093818

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66949, 133898, 200847, 401694, 3548297, 7096594, 10644891, 21289782]

約数ペア:

[(1, 21289782), (2, 10644891), (3, 7096594), (6, 3548297), (53, 401694), (106, 200847), (159, 133898), (318, 66949)]