389941563

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 640991232

約数和(自身を除く): 251049669

約数列:

[1, 3, 11, 17, 23, 33, 47, 51, 69, 141, 187, 253, 391, 517, 561, 643, 759, 799, 1081, 1173, 1551, 1929, 2397, 3243, 4301, 7073, 8789, 10931, 11891, 12903, 14789, 18377, 21219, 26367, 30221, 32793, 35673, 44367, 55131, 90663, 120241, 162679, 202147, 251413, 332431, 360723, 488037, 513757, 606441, 695083, 754239, 997293, 1541271, 2085249, 2765543, 5651327, 7645913, 8296629, 11816411, 16953981, 22937739, 35449233, 129980521, 389941563]

約数ペア:

[(1, 389941563), (3, 129980521), (11, 35449233), (17, 22937739), (23, 16953981), (33, 11816411), (47, 8296629), (51, 7645913), (69, 5651327), (141, 2765543), (187, 2085249), (253, 1541271), (391, 997293), (517, 754239), (561, 695083), (643, 606441), (759, 513757), (799, 488037), (1081, 360723), (1173, 332431), (1551, 251413), (1929, 202147), (2397, 162679), (3243, 120241), (4301, 90663), (7073, 55131), (8789, 44367), (10931, 35673), (11891, 32793), (12903, 30221), (14789, 26367), (18377, 21219)]