20987932

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39451}}^1$

素因数の和:39481

約数の個数: 24

約数和(自身を含む): 44186240

約数和(自身を除く): 23198308

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39451, 78902, 157804, 276157, 552314, 749569, 1104628, 1499138, 2998276, 5246983, 10493966, 20987932]

約数ペア:

[(1, 20987932), (2, 10493966), (4, 5246983), (7, 2998276), (14, 1499138), (19, 1104628), (28, 749569), (38, 552314), (76, 276157), (133, 157804), (266, 78902), (532, 39451)]