81470853

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 56

約数和(自身を含む): 131579712

約数和(自身を除く): 50108859

約数列:

[1, 3, 9, 23, 27, 43, 69, 81, 113, 129, 207, 243, 339, 387, 621, 729, 989, 1017, 1161, 1863, 2599, 2967, 3051, 3483, 4859, 5589, 7797, 8901, 9153, 10449, 14577, 16767, 23391, 26703, 27459, 31347, 43731, 70173, 80109, 82377, 111757, 131193, 210519, 240327, 335271, 393579, 631557, 720981, 1005813, 1180737, 1894671, 3017439, 3542211, 9052317, 27156951, 81470853]

約数ペア:

[(1, 81470853), (3, 27156951), (9, 9052317), (23, 3542211), (27, 3017439), (43, 1894671), (69, 1180737), (81, 1005813), (113, 720981), (129, 631557), (207, 393579), (243, 335271), (339, 240327), (387, 210519), (621, 131193), (729, 111757), (989, 82377), (1017, 80109), (1161, 70173), (1863, 43731), (2599, 31347), (2967, 27459), (3051, 26703), (3483, 23391), (4859, 16767), (5589, 14577), (7797, 10449), (8901, 9153)]