20357973

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{1979}}^1$

素因数の和:2118

約数の個数: 20

約数和(自身を含む): 30666240

約数和(自身を除く): 10308267

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 1979, 3429, 5937, 10287, 17811, 53433, 160299, 251333, 753999, 2261997, 6785991, 20357973]

約数ペア:

[(1, 20357973), (3, 6785991), (9, 2261997), (27, 753999), (81, 251333), (127, 160299), (381, 53433), (1143, 17811), (1979, 10287), (3429, 5937)]