21194442

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 47567520

約数和(自身を除く): 26373078

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 139, 197, 258, 278, 387, 394, 417, 591, 774, 834, 1182, 1251, 1773, 2502, 3546, 5977, 8471, 11954, 16942, 17931, 25413, 27383, 35862, 50826, 53793, 54766, 76239, 82149, 107586, 152478, 164298, 246447, 492894, 1177469, 2354938, 3532407, 7064814, 10597221, 21194442]

約数ペア:

[(1, 21194442), (2, 10597221), (3, 7064814), (6, 3532407), (9, 2354938), (18, 1177469), (43, 492894), (86, 246447), (129, 164298), (139, 152478), (197, 107586), (258, 82149), (278, 76239), (387, 54766), (394, 53793), (417, 50826), (591, 35862), (774, 27383), (834, 25413), (1182, 17931), (1251, 16942), (1773, 11954), (2502, 8471), (3546, 5977)]