20723395

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2833}}^1$

素因数の和:2875

約数の個数: 32

約数和(自身を含む): 32647680

約数和(自身を除く): 11924285

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2833, 7315, 14165, 19831, 31163, 53827, 99155, 155815, 218141, 269135, 376789, 592097, 1090705, 1883945, 2960485, 4144679, 20723395]

約数ペア:

[(1, 20723395), (5, 4144679), (7, 2960485), (11, 1883945), (19, 1090705), (35, 592097), (55, 376789), (77, 269135), (95, 218141), (133, 155815), (209, 99155), (385, 53827), (665, 31163), (1045, 19831), (1463, 14165), (2833, 7315)]