278520021

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{5209}}^1$

素因数の和:5685

約数の個数: 24

約数和(自身を含む): 434284760

約数和(自身を除く): 155764739

約数列:

[1, 3, 9, 13, 39, 117, 457, 1371, 4113, 5209, 5941, 15627, 17823, 46881, 53469, 67717, 203151, 609453, 2380513, 7141539, 21424617, 30946669, 92840007, 278520021]

約数ペア:

[(1, 278520021), (3, 92840007), (9, 30946669), (13, 21424617), (39, 7141539), (117, 2380513), (457, 609453), (1371, 203151), (4113, 67717), (5209, 53469), (5941, 46881), (15627, 17823)]