20690449

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{397}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 23625280

約数和(自身を除く): 2934831

約数列:

[1, 13, 19, 211, 247, 397, 2743, 4009, 5161, 7543, 52117, 83767, 98059, 1088971, 1591573, 20690449]

約数ペア:

[(1, 20690449), (13, 1591573), (19, 1088971), (211, 98059), (247, 83767), (397, 52117), (2743, 7543), (4009, 5161)]