201000303

素因数分解:

$3^2\times 7^2\times {\mathrm{455783}}^1$

素因数の和:455803

約数の個数: 18

約数和(自身を含む): 337735944

約数和(自身を除く): 136735641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 455783, 1367349, 3190481, 4102047, 9571443, 22333367, 28714329, 67000101, 201000303]

約数ペア:

[(1, 201000303), (3, 67000101), (7, 28714329), (9, 22333367), (21, 9571443), (49, 4102047), (63, 3190481), (147, 1367349), (441, 455783)]