28917889

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4127}}^1$

素因数の和:4165

約数の個数: 24

約数和(自身を含む): 39529728

約数和(自身を除く): 10611839

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 4127, 7007, 28889, 45397, 53651, 202223, 317779, 375557, 590161, 2224453, 2628899, 4131127, 28917889]

約数ペア:

[(1, 28917889), (7, 4131127), (11, 2628899), (13, 2224453), (49, 590161), (77, 375557), (91, 317779), (143, 202223), (539, 53651), (637, 45397), (1001, 28889), (4127, 7007)]