256272009

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{56237}}^1$

素因数の和:56285

約数の個数: 24

約数和(自身を含む): 410312448

約数和(自身を除く): 154040439

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 56237, 168711, 393659, 1180977, 1743347, 2755613, 5230041, 8266839, 12203429, 36610287, 85424003, 256272009]

約数ペア:

[(1, 256272009), (3, 85424003), (7, 36610287), (21, 12203429), (31, 8266839), (49, 5230041), (93, 2755613), (147, 1743347), (217, 1180977), (651, 393659), (1519, 168711), (4557, 56237)]