28587039

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 43653120

約数和(自身を除く): 15066081

約数列:

[1, 3, 13, 19, 39, 57, 173, 223, 247, 519, 669, 741, 2249, 2899, 3287, 4237, 6747, 8697, 9861, 12711, 38579, 42731, 55081, 115737, 128193, 165243, 501527, 733001, 1504581, 2199003, 9529013, 28587039]

約数ペア:

[(1, 28587039), (3, 9529013), (13, 2199003), (19, 1504581), (39, 733001), (57, 501527), (173, 165243), (223, 128193), (247, 115737), (519, 55081), (669, 42731), (741, 38579), (2249, 12711), (2899, 9861), (3287, 8697), (4237, 6747)]