20539475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3931}}^1$

素因数の和:3971

約数の個数: 24

約数和(自身を含む): 29254080

約数和(自身を除く): 8714605

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 3931, 5225, 19655, 43241, 74689, 98275, 216205, 373445, 821579, 1081025, 1867225, 4107895, 20539475]

約数ペア:

[(1, 20539475), (5, 4107895), (11, 1867225), (19, 1081025), (25, 821579), (55, 373445), (95, 216205), (209, 98275), (275, 74689), (475, 43241), (1045, 19655), (3931, 5225)]