81298378

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{305633}}^1$

素因数の和:305661

約数の個数: 16

約数和(自身を含む): 146704320

約数和(自身を除く): 65405942

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 305633, 611266, 2139431, 4278862, 5807027, 11614054, 40649189, 81298378]

約数ペア:

[(1, 81298378), (2, 40649189), (7, 11614054), (14, 5807027), (19, 4278862), (38, 2139431), (133, 611266), (266, 305633)]