66720339

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 115015680

約数和(自身を除く): 48295341

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 127, 217, 269, 279, 381, 651, 807, 889, 1143, 1883, 1953, 2421, 2667, 3937, 5649, 8001, 8339, 11811, 16947, 25017, 27559, 34163, 35433, 58373, 75051, 82677, 102489, 175119, 239141, 248031, 307467, 525357, 717423, 1059053, 2152269, 3177159, 7413371, 9531477, 22240113, 66720339]

約数ペア:

[(1, 66720339), (3, 22240113), (7, 9531477), (9, 7413371), (21, 3177159), (31, 2152269), (63, 1059053), (93, 717423), (127, 525357), (217, 307467), (269, 248031), (279, 239141), (381, 175119), (651, 102489), (807, 82677), (889, 75051), (1143, 58373), (1883, 35433), (1953, 34163), (2421, 27559), (2667, 25017), (3937, 16947), (5649, 11811), (8001, 8339)]