7255388619

素因数分解:

$3^4\times {\mathrm{641}}^1\times {\mathrm{139739}}^1$

素因数の和:140392

約数の個数: 20

約数和(自身を含む): 10855282680

約数和(自身を除く): 3599894061

約数列:

[1, 3, 9, 27, 81, 641, 1923, 5769, 17307, 51921, 139739, 419217, 1257651, 3772953, 11318859, 89572699, 268718097, 806154291, 2418462873, 7255388619]

約数ペア:

[(1, 7255388619), (3, 2418462873), (9, 806154291), (27, 268718097), (81, 89572699), (641, 11318859), (1923, 3772953), (5769, 1257651), (17307, 419217), (51921, 139739)]