20908468

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1103}}^1$

素因数の和:1791

約数の個数: 24

約数和(自身を含む): 41916672

約数和(自身を除く): 21008204

約数列:

[1, 2, 4, 7, 14, 28, 677, 1103, 1354, 2206, 2708, 4412, 4739, 7721, 9478, 15442, 18956, 30884, 746731, 1493462, 2986924, 5227117, 10454234, 20908468]

約数ペア:

[(1, 20908468), (2, 10454234), (4, 5227117), (7, 2986924), (14, 1493462), (28, 746731), (677, 30884), (1103, 18956), (1354, 15442), (2206, 9478), (2708, 7721), (4412, 4739)]