20979424

素因数分解:

$2^5\times {\mathrm{257}}^1\times {\mathrm{2551}}^1$

素因数の和:2818

約数の個数: 24

約数和(自身を含む): 41480208

約数和(自身を除く): 20500784

約数列:

[1, 2, 4, 8, 16, 32, 257, 514, 1028, 2056, 2551, 4112, 5102, 8224, 10204, 20408, 40816, 81632, 655607, 1311214, 2622428, 5244856, 10489712, 20979424]

約数ペア:

[(1, 20979424), (2, 10489712), (4, 5244856), (8, 2622428), (16, 1311214), (32, 655607), (257, 81632), (514, 40816), (1028, 20408), (2056, 10204), (2551, 8224), (4112, 5102)]