20879613

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13567}}^1$

素因数の和:13598

約数の個数: 20

約数和(自身を含む): 32834560

約数和(自身を除く): 11954947

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13567, 40701, 122103, 257773, 366309, 773319, 1098927, 2319957, 6959871, 20879613]

約数ペア:

[(1, 20879613), (3, 6959871), (9, 2319957), (19, 1098927), (27, 773319), (57, 366309), (81, 257773), (171, 122103), (513, 40701), (1539, 13567)]