378459

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 16

約数和(自身を含む): 570240

約数和(自身を除く): 191781

約数列:

[1, 3, 9, 27, 107, 131, 321, 393, 963, 1179, 2889, 3537, 14017, 42051, 126153, 378459]

約数ペア:

[(1, 378459), (3, 126153), (9, 42051), (27, 14017), (107, 3537), (131, 2889), (321, 1179), (393, 963)]