2865863

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 3926160

約数和(自身を除く): 1060297

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 409, 539, 637, 1001, 2863, 4499, 5317, 7007, 20041, 31493, 37219, 58487, 220451, 260533, 409409, 2865863]

約数ペア:

[(1, 2865863), (7, 409409), (11, 260533), (13, 220451), (49, 58487), (77, 37219), (91, 31493), (143, 20041), (409, 7007), (539, 5317), (637, 4499), (1001, 2863)]