5471978409

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{390493}}^1$

素因数の和:390678

約数の個数: 20

約数和(自身を含む): 8221460676

約数和(自身を除く): 2749482267

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 4671, 14013, 390493, 1171479, 3514437, 10543311, 31629933, 67555289, 202665867, 607997601, 1823992803, 5471978409]

約数ペア:

[(1, 5471978409), (3, 1823992803), (9, 607997601), (27, 202665867), (81, 67555289), (173, 31629933), (519, 10543311), (1557, 3514437), (4671, 1171479), (14013, 390493)]