20900361

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21569}}^1$

素因数の和:21608

約数の個数: 16

約数和(自身を含む): 31060800

約数和(自身を除く): 10160439

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21569, 64707, 366673, 409811, 1100019, 1229433, 6966787, 20900361]

約数ペア:

[(1, 20900361), (3, 6966787), (17, 1229433), (19, 1100019), (51, 409811), (57, 366673), (323, 64707), (969, 21569)]