208335969

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7963}}^1$

素因数の和:8011

約数の個数: 40

約数和(自身を含む): 346911840

約数和(自身を除く): 138575871

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 969, 1377, 1539, 2907, 7963, 8721, 23889, 26163, 71667, 135371, 151297, 215001, 406113, 453891, 645003, 1218339, 1361673, 2572049, 3655017, 4085019, 7716147, 10965051, 12255057, 23148441, 69445323, 208335969]

約数ペア:

[(1, 208335969), (3, 69445323), (9, 23148441), (17, 12255057), (19, 10965051), (27, 7716147), (51, 4085019), (57, 3655017), (81, 2572049), (153, 1361673), (171, 1218339), (323, 645003), (459, 453891), (513, 406113), (969, 215001), (1377, 151297), (1539, 135371), (2907, 71667), (7963, 26163), (8721, 23889)]