20603907

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:847

約数の個数: 24

約数和(自身を含む): 30890496

約数和(自身を除く): 10286589

約数列:

[1, 3, 9, 47, 67, 141, 201, 423, 603, 727, 2181, 3149, 6543, 9447, 28341, 34169, 48709, 102507, 146127, 307521, 438381, 2289323, 6867969, 20603907]

約数ペア:

[(1, 20603907), (3, 6867969), (9, 2289323), (47, 438381), (67, 307521), (141, 146127), (201, 102507), (423, 48709), (603, 34169), (727, 28341), (2181, 9447), (3149, 6543)]