161321881

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{467}}^1\times {\mathrm{809}}^1$

素因数の和:1344

約数の個数: 16

約数和(自身を含む): 188023680

約数和(自身を除く): 26701799

約数列:

[1, 7, 61, 427, 467, 809, 3269, 5663, 28487, 49349, 199409, 345443, 377803, 2644621, 23045983, 161321881]

約数ペア:

[(1, 161321881), (7, 23045983), (61, 2644621), (427, 377803), (467, 345443), (809, 199409), (3269, 49349), (5663, 28487)]