257616666

素因数分解:

$2^1\times 3^3\times {\mathrm{239}}^1\times {\mathrm{19961}}^1$

素因数の和:20211

約数の個数: 32

約数和(自身を含む): 574905600

約数和(自身を除く): 317288934

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 239, 478, 717, 1434, 2151, 4302, 6453, 12906, 19961, 39922, 59883, 119766, 179649, 359298, 538947, 1077894, 4770679, 9541358, 14312037, 28624074, 42936111, 85872222, 128808333, 257616666]

約数ペア:

[(1, 257616666), (2, 128808333), (3, 85872222), (6, 42936111), (9, 28624074), (18, 14312037), (27, 9541358), (54, 4770679), (239, 1077894), (478, 538947), (717, 359298), (1434, 179649), (2151, 119766), (4302, 59883), (6453, 39922), (12906, 19961)]