128545131

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2011}}^1$

素因数の和:2187

約数の個数: 32

約数和(自身を含む): 202809600

約数和(自身を除く): 74264469

約数列:

[1, 3, 11, 13, 33, 39, 143, 149, 429, 447, 1639, 1937, 2011, 4917, 5811, 6033, 21307, 22121, 26143, 63921, 66363, 78429, 287573, 299639, 862719, 898917, 3296029, 3895307, 9888087, 11685921, 42848377, 128545131]

約数ペア:

[(1, 128545131), (3, 42848377), (11, 11685921), (13, 9888087), (33, 3895307), (39, 3296029), (143, 898917), (149, 862719), (429, 299639), (447, 287573), (1639, 78429), (1937, 66363), (2011, 63921), (4917, 26143), (5811, 22121), (6033, 21307)]