20013568

素因数分解:

$2^9\times {\mathrm{39089}}^1$

素因数の和:39107

約数の個数: 20

約数和(自身を含む): 39989070

約数和(自身を除く): 19975502

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39089, 78178, 156356, 312712, 625424, 1250848, 2501696, 5003392, 10006784, 20013568]

約数ペア:

[(1, 20013568), (2, 10006784), (4, 5003392), (8, 2501696), (16, 1250848), (32, 625424), (64, 312712), (128, 156356), (256, 78178), (512, 39089)]