289172997

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{155219}}^1$

素因数の和:155254

約数の個数: 20

約数和(自身を含む): 450758880

約数和(自身を除く): 161585883

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 155219, 465657, 1396971, 3570037, 4190913, 10710111, 12572739, 32130333, 96390999, 289172997]

約数ペア:

[(1, 289172997), (3, 96390999), (9, 32130333), (23, 12572739), (27, 10710111), (69, 4190913), (81, 3570037), (207, 1396971), (621, 465657), (1863, 155219)]