18680805

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2903}}^1$

素因数の和:2938

約数の個数: 48

約数和(自身を含む): 38054016

約数和(自身を除く): 19373211

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 143, 165, 195, 429, 495, 585, 715, 1287, 2145, 2903, 6435, 8709, 14515, 26127, 31933, 37739, 43545, 95799, 113217, 130635, 159665, 188695, 287397, 339651, 415129, 478995, 566085, 1245387, 1436985, 1698255, 2075645, 3736161, 6226935, 18680805]

約数ペア:

[(1, 18680805), (3, 6226935), (5, 3736161), (9, 2075645), (11, 1698255), (13, 1436985), (15, 1245387), (33, 566085), (39, 478995), (45, 415129), (55, 339651), (65, 287397), (99, 188695), (117, 159665), (143, 130635), (165, 113217), (195, 95799), (429, 43545), (495, 37739), (585, 31933), (715, 26127), (1287, 14515), (2145, 8709), (2903, 6435)]