12778961

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 14568960

約数和(自身を除く): 1789999

約数列:

[1, 13, 23, 79, 299, 541, 1027, 1817, 7033, 12443, 23621, 42739, 161759, 555607, 982997, 12778961]

約数ペア:

[(1, 12778961), (13, 982997), (23, 555607), (79, 161759), (299, 42739), (541, 23621), (1027, 12443), (1817, 7033)]