164480211

素因数分解:

$3^2\times 7^2\times {\mathrm{372971}}^1$

素因数の和:372991

約数の個数: 18

約数和(自身を含む): 276372252

約数和(自身を除く): 111892041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 372971, 1118913, 2610797, 3356739, 7832391, 18275579, 23497173, 54826737, 164480211]

約数ペア:

[(1, 164480211), (3, 54826737), (7, 23497173), (9, 18275579), (21, 7832391), (49, 3356739), (63, 2610797), (147, 1118913), (441, 372971)]