205339986

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{72661}}^1$

素因数の和:72826

約数の個数: 24

約数和(自身を含む): 447743244

約数和(自身を除く): 242403258

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 72661, 145322, 217983, 435966, 653949, 1307898, 11407777, 22815554, 34223331, 68446662, 102669993, 205339986]

約数ペア:

[(1, 205339986), (2, 102669993), (3, 68446662), (6, 34223331), (9, 22815554), (18, 11407777), (157, 1307898), (314, 653949), (471, 435966), (942, 217983), (1413, 145322), (2826, 72661)]