20379404

素因数分解:

$2^2\times {\mathrm{431}}^1\times {\mathrm{11821}}^1$

素因数の和:12256

約数の個数: 12

約数和(自身を含む): 35749728

約数和(自身を除く): 15370324

約数列:

[1, 2, 4, 431, 862, 1724, 11821, 23642, 47284, 5094851, 10189702, 20379404]

約数ペア:

[(1, 20379404), (2, 10189702), (4, 5094851), (431, 47284), (862, 23642), (1724, 11821)]