678164481

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{194707}}^1$

素因数の和:194762

約数の個数: 20

約数和(自身を含む): 1036625392

約数和(自身を除く): 358460911

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 194707, 584121, 1752363, 5257089, 8372401, 15771267, 25117203, 75351609, 226054827, 678164481]

約数ペア:

[(1, 678164481), (3, 226054827), (9, 75351609), (27, 25117203), (43, 15771267), (81, 8372401), (129, 5257089), (387, 1752363), (1161, 584121), (3483, 194707)]