20813949

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3121}}^1$

素因数の和:3162

約数の個数: 32

約数和(自身を含む): 34966400

約数和(自身を除く): 14152451

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 3121, 6669, 9363, 28089, 40573, 59299, 84267, 121719, 177897, 365157, 533691, 770887, 1095471, 1601073, 2312661, 6937983, 20813949]

約数ペア:

[(1, 20813949), (3, 6937983), (9, 2312661), (13, 1601073), (19, 1095471), (27, 770887), (39, 533691), (57, 365157), (117, 177897), (171, 121719), (247, 84267), (351, 59299), (513, 40573), (741, 28089), (2223, 9363), (3121, 6669)]