1291297

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 18

約数和(自身を含む): 1607058

約数和(自身を除く): 315761

約数列:

[1, 7, 19, 49, 73, 133, 361, 511, 931, 1387, 2527, 3577, 9709, 17689, 26353, 67963, 184471, 1291297]

約数ペア:

[(1, 1291297), (7, 184471), (19, 67963), (49, 26353), (73, 17689), (133, 9709), (361, 3577), (511, 2527), (931, 1387)]