639757923

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1792039}}^1$

素因数の和:1792066

約数の個数: 16

約数和(自身を含む): 1032215040

約数和(自身を除く): 392457117

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 1792039, 5376117, 12544273, 30464663, 37632819, 91393989, 213252641, 639757923]

約数ペア:

[(1, 639757923), (3, 213252641), (7, 91393989), (17, 37632819), (21, 30464663), (51, 12544273), (119, 5376117), (357, 1792039)]