20515628287

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{491}}^1\times {\mathrm{49331}}^1$

素因数の和:49851

約数の個数: 24

約数和(自身を含む): 25824710016

約数和(自身を除く): 5309081729

約数列:

[1, 7, 11, 77, 121, 491, 847, 3437, 5401, 37807, 49331, 59411, 345317, 415877, 542641, 3798487, 5969051, 24221521, 41783357, 169550647, 266436731, 1865057117, 2930804041, 20515628287]

約数ペア:

[(1, 20515628287), (7, 2930804041), (11, 1865057117), (77, 266436731), (121, 169550647), (491, 41783357), (847, 24221521), (3437, 5969051), (5401, 3798487), (37807, 542641), (49331, 415877), (59411, 345317)]