251127

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:211

約数の個数: 16

約数和(自身を含む): 380160

約数和(自身を除く): 129033

約数列:

[1, 3, 9, 27, 71, 131, 213, 393, 639, 1179, 1917, 3537, 9301, 27903, 83709, 251127]

約数ペア:

[(1, 251127), (3, 83709), (9, 27903), (27, 9301), (71, 3537), (131, 1917), (213, 1179), (393, 639)]