20905586

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 35985600

約数和(自身を除く): 15080014

約数列:

[1, 2, 13, 19, 26, 38, 101, 202, 247, 419, 494, 838, 1313, 1919, 2626, 3838, 5447, 7961, 10894, 15922, 24947, 42319, 49894, 84638, 103493, 206986, 550147, 804061, 1100294, 1608122, 10452793, 20905586]

約数ペア:

[(1, 20905586), (2, 10452793), (13, 1608122), (19, 1100294), (26, 804061), (38, 550147), (101, 206986), (202, 103493), (247, 84638), (419, 49894), (494, 42319), (838, 24947), (1313, 15922), (1919, 10894), (2626, 7961), (3838, 5447)]