19989568

素因数分解:

$2^6\times {\mathrm{547}}^1\times {\mathrm{571}}^1$

素因数の和:1130

約数の個数: 28

約数和(自身を含む): 39808912

約数和(自身を除く): 19819344

約数列:

[1, 2, 4, 8, 16, 32, 64, 547, 571, 1094, 1142, 2188, 2284, 4376, 4568, 8752, 9136, 17504, 18272, 35008, 36544, 312337, 624674, 1249348, 2498696, 4997392, 9994784, 19989568]

約数ペア:

[(1, 19989568), (2, 9994784), (4, 4997392), (8, 2498696), (16, 1249348), (32, 624674), (64, 312337), (547, 36544), (571, 35008), (1094, 18272), (1142, 17504), (2188, 9136), (2284, 8752), (4376, 4568)]