208689971

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 36

約数和(自身を含む): 259480872

約数和(自身を除く): 50790901

約数列:

[1, 7, 23, 49, 83, 97, 161, 529, 581, 679, 1127, 1909, 2231, 3703, 4067, 4753, 8051, 13363, 15617, 25921, 43907, 51313, 56357, 93541, 109319, 185173, 307349, 359191, 394499, 1296211, 2151443, 2514337, 4258979, 9073477, 29812853, 208689971]

約数ペア:

[(1, 208689971), (7, 29812853), (23, 9073477), (49, 4258979), (83, 2514337), (97, 2151443), (161, 1296211), (529, 394499), (581, 359191), (679, 307349), (1127, 185173), (1909, 109319), (2231, 93541), (3703, 56357), (4067, 51313), (4753, 43907), (8051, 25921), (13363, 15617)]