20320899

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 30746880

約数和(自身を除く): 10425981

約数列:

[1, 3, 17, 19, 51, 57, 67, 201, 313, 323, 939, 969, 1139, 1273, 3417, 3819, 5321, 5947, 15963, 17841, 20971, 21641, 62913, 64923, 101099, 303297, 356507, 398449, 1069521, 1195347, 6773633, 20320899]

約数ペア:

[(1, 20320899), (3, 6773633), (17, 1195347), (19, 1069521), (51, 398449), (57, 356507), (67, 303297), (201, 101099), (313, 64923), (323, 62913), (939, 21641), (969, 20971), (1139, 17841), (1273, 15963), (3417, 5947), (3819, 5321)]