180697797

素因数分解:

$3^4\times 7^1\times {\mathrm{318691}}^1$

素因数の和:318710

約数の個数: 20

約数和(自身を含む): 308493856

約数和(自身を除く): 127796059

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 318691, 956073, 2230837, 2868219, 6692511, 8604657, 20077533, 25813971, 60232599, 180697797]

約数ペア:

[(1, 180697797), (3, 60232599), (7, 25813971), (9, 20077533), (21, 8604657), (27, 6692511), (63, 2868219), (81, 2230837), (189, 956073), (567, 318691)]