208536503

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{1361}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 251534160

約数和(自身を除く): 42997657

約数列:

[1, 7, 49, 53, 59, 371, 413, 1361, 2597, 2891, 3127, 9527, 21889, 66689, 72133, 80299, 153223, 504931, 562093, 3534517, 3934651, 4255847, 29790929, 208536503]

約数ペア:

[(1, 208536503), (7, 29790929), (49, 4255847), (53, 3934651), (59, 3534517), (371, 562093), (413, 504931), (1361, 153223), (2597, 80299), (2891, 72133), (3127, 66689), (9527, 21889)]