687113973

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{2903}}^1$

素因数の和:2963

約数の個数: 72

約数和(自身を含む): 1298064768

約数和(自身を除く): 610950795

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 289, 357, 663, 819, 867, 1071, 1547, 1989, 2023, 2601, 2903, 3757, 4641, 6069, 8709, 11271, 13923, 18207, 20321, 26127, 26299, 33813, 37739, 49351, 60963, 78897, 113217, 148053, 182889, 236691, 264173, 339651, 345457, 444159, 641563, 792519, 838967, 1036371, 1924689, 2377557, 2516901, 3109113, 4490941, 5774067, 5872769, 7550703, 10906571, 13472823, 17618307, 32719713, 40418469, 52854921, 76345997, 98159139, 229037991, 687113973]

約数ペア:

[(1, 687113973), (3, 229037991), (7, 98159139), (9, 76345997), (13, 52854921), (17, 40418469), (21, 32719713), (39, 17618307), (51, 13472823), (63, 10906571), (91, 7550703), (117, 5872769), (119, 5774067), (153, 4490941), (221, 3109113), (273, 2516901), (289, 2377557), (357, 1924689), (663, 1036371), (819, 838967), (867, 792519), (1071, 641563), (1547, 444159), (1989, 345457), (2023, 339651), (2601, 264173), (2903, 236691), (3757, 182889), (4641, 148053), (6069, 113217), (8709, 78897), (11271, 60963), (13923, 49351), (18207, 37739), (20321, 33813), (26127, 26299)]