1220757981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{1291}}^1\times {\mathrm{18541}}^1$

素因数の和:19852

約数の個数: 16

約数和(自身を含む): 1724851008

約数和(自身を除く): 504093027

約数列:

[1, 3, 17, 51, 1291, 3873, 18541, 21947, 55623, 65841, 315197, 945591, 23936431, 71809293, 406919327, 1220757981]

約数ペア:

[(1, 1220757981), (3, 406919327), (17, 71809293), (51, 23936431), (1291, 945591), (3873, 315197), (18541, 65841), (21947, 55623)]