71865507

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 116686752

約数和(自身を除く): 44821245

約数列:

[1, 3, 7, 21, 37, 49, 73, 111, 147, 181, 219, 259, 511, 543, 777, 1267, 1533, 1813, 2701, 3577, 3801, 5439, 6697, 8103, 8869, 10731, 13213, 18907, 20091, 26607, 39639, 46879, 56721, 92491, 132349, 140637, 277473, 328153, 397047, 488881, 647437, 984459, 1466643, 1942311, 3422167, 10266501, 23955169, 71865507]

約数ペア:

[(1, 71865507), (3, 23955169), (7, 10266501), (21, 3422167), (37, 1942311), (49, 1466643), (73, 984459), (111, 647437), (147, 488881), (181, 397047), (219, 328153), (259, 277473), (511, 140637), (543, 132349), (777, 92491), (1267, 56721), (1533, 46879), (1813, 39639), (2701, 26607), (3577, 20091), (3801, 18907), (5439, 13213), (6697, 10731), (8103, 8869)]