19820675

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2137}}^1$

素因数の和:2207

約数の個数: 24

約数和(自身を含む): 28632096

約数和(自身を除く): 8811421

約数列:

[1, 5, 7, 25, 35, 53, 175, 265, 371, 1325, 1855, 2137, 9275, 10685, 14959, 53425, 74795, 113261, 373975, 566305, 792827, 2831525, 3964135, 19820675]

約数ペア:

[(1, 19820675), (5, 3964135), (7, 2831525), (25, 792827), (35, 566305), (53, 373975), (175, 113261), (265, 74795), (371, 53425), (1325, 14959), (1855, 10685), (2137, 9275)]