18929804

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 34162128

約数和(自身を除く): 15232324

約数列:

[1, 2, 4, 43, 86, 157, 172, 314, 628, 701, 1402, 2804, 6751, 13502, 27004, 30143, 60286, 110057, 120572, 220114, 440228, 4732451, 9464902, 18929804]

約数ペア:

[(1, 18929804), (2, 9464902), (4, 4732451), (43, 440228), (86, 220114), (157, 120572), (172, 110057), (314, 60286), (628, 30143), (701, 27004), (1402, 13502), (2804, 6751)]