208284489

素因数分解:

$3^2\times 7^1\times {\mathrm{1249}}^1\times {\mathrm{2647}}^1$

素因数の和:3909

約数の個数: 24

約数和(自身を含む): 344240000

約数和(自身を除く): 135955511

約数列:

[1, 3, 7, 9, 21, 63, 1249, 2647, 3747, 7941, 8743, 11241, 18529, 23823, 26229, 55587, 78687, 166761, 3306103, 9918309, 23142721, 29754927, 69428163, 208284489]

約数ペア:

[(1, 208284489), (3, 69428163), (7, 29754927), (9, 23142721), (21, 9918309), (63, 3306103), (1249, 166761), (2647, 78687), (3747, 55587), (7941, 26229), (8743, 23823), (11241, 18529)]