21785182551

素因数分解:

$3^5\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{3761}}^1$

素因数の和:3995

約数の個数: 72

約数和(自身を含む): 36060936912

約数和(自身を除く): 14275754361

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 197, 243, 297, 363, 591, 891, 1089, 1773, 2167, 2673, 3267, 3761, 5319, 6501, 9801, 11283, 15957, 19503, 23837, 29403, 33849, 41371, 47871, 58509, 71511, 101547, 124113, 175527, 214533, 304641, 372339, 455081, 526581, 643599, 740917, 913923, 1117017, 1365243, 1930797, 2222751, 3351051, 4095729, 5792391, 6668253, 8150087, 10053153, 12287187, 20004759, 24450261, 36861561, 60014277, 73350783, 89650957, 110584683, 180042831, 220052349, 268952871, 660157047, 806858613, 1980471141, 2420575839, 7261727517, 21785182551]

約数ペア:

[(1, 21785182551), (3, 7261727517), (9, 2420575839), (11, 1980471141), (27, 806858613), (33, 660157047), (81, 268952871), (99, 220052349), (121, 180042831), (197, 110584683), (243, 89650957), (297, 73350783), (363, 60014277), (591, 36861561), (891, 24450261), (1089, 20004759), (1773, 12287187), (2167, 10053153), (2673, 8150087), (3267, 6668253), (3761, 5792391), (5319, 4095729), (6501, 3351051), (9801, 2222751), (11283, 1930797), (15957, 1365243), (19503, 1117017), (23837, 913923), (29403, 740917), (33849, 643599), (41371, 526581), (47871, 455081), (58509, 372339), (71511, 304641), (101547, 214533), (124113, 175527)]