20877363

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{178439}}^1$

素因数の和:178458

約数の個数: 12

約数和(自身を含む): 32476080

約数和(自身を除く): 11598717

約数列:

[1, 3, 9, 13, 39, 117, 178439, 535317, 1605951, 2319707, 6959121, 20877363]

約数ペア:

[(1, 20877363), (3, 6959121), (9, 2319707), (13, 1605951), (39, 535317), (117, 178439)]