21618702

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 72

約数和(自身を含む): 55201536

約数和(自身を除く): 33582834

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 127, 147, 193, 254, 294, 381, 386, 441, 579, 762, 882, 889, 1143, 1158, 1351, 1737, 1778, 2286, 2667, 2702, 3474, 4053, 5334, 6223, 8001, 8106, 9457, 12159, 12446, 16002, 18669, 18914, 24318, 24511, 28371, 37338, 49022, 56007, 56742, 73533, 85113, 112014, 147066, 170226, 171577, 220599, 343154, 441198, 514731, 1029462, 1201039, 1544193, 2402078, 3088386, 3603117, 7206234, 10809351, 21618702]

約数ペア:

[(1, 21618702), (2, 10809351), (3, 7206234), (6, 3603117), (7, 3088386), (9, 2402078), (14, 1544193), (18, 1201039), (21, 1029462), (42, 514731), (49, 441198), (63, 343154), (98, 220599), (126, 171577), (127, 170226), (147, 147066), (193, 112014), (254, 85113), (294, 73533), (381, 56742), (386, 56007), (441, 49022), (579, 37338), (762, 28371), (882, 24511), (889, 24318), (1143, 18914), (1158, 18669), (1351, 16002), (1737, 12446), (1778, 12159), (2286, 9457), (2667, 8106), (2702, 8001), (3474, 6223), (4053, 5334)]