19807004

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16451}}^1$

素因数の和:16505

約数の個数: 24

約数和(自身を含む): 40537728

約数和(自身を除く): 20730724

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16451, 32902, 65804, 115157, 230314, 460628, 707393, 1414786, 2829572, 4951751, 9903502, 19807004]

約数ペア:

[(1, 19807004), (2, 9903502), (4, 4951751), (7, 2829572), (14, 1414786), (28, 707393), (43, 460628), (86, 230314), (172, 115157), (301, 65804), (602, 32902), (1204, 16451)]