19911148

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{839}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 37044000

約数和(自身を除く): 17132852

約数列:

[1, 2, 4, 17, 34, 68, 349, 698, 839, 1396, 1678, 3356, 5933, 11866, 14263, 23732, 28526, 57052, 292811, 585622, 1171244, 4977787, 9955574, 19911148]

約数ペア:

[(1, 19911148), (2, 9955574), (4, 4977787), (17, 1171244), (34, 585622), (68, 292811), (349, 57052), (698, 28526), (839, 23732), (1396, 14263), (1678, 11866), (3356, 5933)]