201771471

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{643}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 303061248

約数和(自身を除く): 101289777

約数列:

[1, 3, 11, 33, 37, 111, 257, 407, 643, 771, 1221, 1929, 2827, 7073, 8481, 9509, 21219, 23791, 28527, 71373, 104599, 165251, 261701, 313797, 495753, 785103, 1817761, 5453283, 6114287, 18342861, 67257157, 201771471]

約数ペア:

[(1, 201771471), (3, 67257157), (11, 18342861), (33, 6114287), (37, 5453283), (111, 1817761), (257, 785103), (407, 495753), (643, 313797), (771, 261701), (1221, 165251), (1929, 104599), (2827, 71373), (7073, 28527), (8481, 23791), (9509, 21219)]