20798019

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{293}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13070781

約数列:

[1, 3, 9, 11, 27, 33, 99, 239, 293, 297, 717, 879, 2151, 2629, 2637, 3223, 6453, 7887, 7911, 9669, 23661, 29007, 70027, 70983, 87021, 210081, 630243, 770297, 1890729, 2310891, 6932673, 20798019]

約数ペア:

[(1, 20798019), (3, 6932673), (9, 2310891), (11, 1890729), (27, 770297), (33, 630243), (99, 210081), (239, 87021), (293, 70983), (297, 70027), (717, 29007), (879, 23661), (2151, 9669), (2629, 7911), (2637, 7887), (3223, 6453)]