18915906

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2273}}^1$

素因数の和:2370

約数の個数: 32

約数和(自身を含む): 40386240

約数和(自身を除く): 21470334

約数列:

[1, 2, 3, 6, 19, 38, 57, 73, 114, 146, 219, 438, 1387, 2273, 2774, 4161, 4546, 6819, 8322, 13638, 43187, 86374, 129561, 165929, 259122, 331858, 497787, 995574, 3152651, 6305302, 9457953, 18915906]

約数ペア:

[(1, 18915906), (2, 9457953), (3, 6305302), (6, 3152651), (19, 995574), (38, 497787), (57, 331858), (73, 259122), (114, 165929), (146, 129561), (219, 86374), (438, 43187), (1387, 13638), (2273, 8322), (2774, 6819), (4161, 4546)]