21291732

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7681}}^1$

素因数の和:7709

約数の個数: 72

約数和(自身を含む): 67109952

約数和(自身を除く): 45818220

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7681, 15362, 23043, 30724, 46086, 53767, 69129, 84491, 92172, 107534, 138258, 161301, 168982, 215068, 253473, 276516, 322602, 337964, 483903, 506946, 591437, 645204, 760419, 967806, 1013892, 1182874, 1520838, 1774311, 1935612, 2365748, 3041676, 3548622, 5322933, 7097244, 10645866, 21291732]

約数ペア:

[(1, 21291732), (2, 10645866), (3, 7097244), (4, 5322933), (6, 3548622), (7, 3041676), (9, 2365748), (11, 1935612), (12, 1774311), (14, 1520838), (18, 1182874), (21, 1013892), (22, 967806), (28, 760419), (33, 645204), (36, 591437), (42, 506946), (44, 483903), (63, 337964), (66, 322602), (77, 276516), (84, 253473), (99, 215068), (126, 168982), (132, 161301), (154, 138258), (198, 107534), (231, 92172), (252, 84491), (308, 69129), (396, 53767), (462, 46086), (693, 30724), (924, 23043), (1386, 15362), (2772, 7681)]