18919212

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 50420160

約数和(自身を除く): 31500948

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 169, 228, 247, 338, 491, 494, 507, 676, 741, 982, 988, 1014, 1473, 1482, 1964, 2028, 2946, 2964, 3211, 5892, 6383, 6422, 9329, 9633, 12766, 12844, 18658, 19149, 19266, 25532, 27987, 37316, 38298, 38532, 55974, 76596, 82979, 111948, 121277, 165958, 242554, 248937, 331916, 363831, 485108, 497874, 727662, 995748, 1455324, 1576601, 3153202, 4729803, 6306404, 9459606, 18919212]

約数ペア:

[(1, 18919212), (2, 9459606), (3, 6306404), (4, 4729803), (6, 3153202), (12, 1576601), (13, 1455324), (19, 995748), (26, 727662), (38, 497874), (39, 485108), (52, 363831), (57, 331916), (76, 248937), (78, 242554), (114, 165958), (156, 121277), (169, 111948), (228, 82979), (247, 76596), (338, 55974), (491, 38532), (494, 38298), (507, 37316), (676, 27987), (741, 25532), (982, 19266), (988, 19149), (1014, 18658), (1473, 12844), (1482, 12766), (1964, 9633), (2028, 9329), (2946, 6422), (2964, 6383), (3211, 5892)]