28071778

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{105533}}^1$

素因数の和:105561

約数の個数: 16

約数和(自身を含む): 50656320

約数和(自身を除く): 22584542

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 105533, 211066, 738731, 1477462, 2005127, 4010254, 14035889, 28071778]

約数ペア:

[(1, 28071778), (2, 14035889), (7, 4010254), (14, 2005127), (19, 1477462), (38, 738731), (133, 211066), (266, 105533)]