81963387

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 139345920

約数和(自身を除く): 57382533

約数列:

[1, 3, 9, 11, 27, 33, 41, 53, 99, 123, 127, 159, 297, 369, 381, 451, 477, 583, 1107, 1143, 1353, 1397, 1431, 1749, 2173, 3429, 4059, 4191, 5207, 5247, 6519, 6731, 12177, 12573, 15621, 15741, 19557, 20193, 23903, 37719, 46863, 57277, 58671, 60579, 71709, 74041, 140589, 171831, 181737, 215127, 222123, 275971, 515493, 645381, 666369, 827913, 1546479, 1999107, 2483739, 3035681, 7451217, 9107043, 27321129, 81963387]

約数ペア:

[(1, 81963387), (3, 27321129), (9, 9107043), (11, 7451217), (27, 3035681), (33, 2483739), (41, 1999107), (53, 1546479), (99, 827913), (123, 666369), (127, 645381), (159, 515493), (297, 275971), (369, 222123), (381, 215127), (451, 181737), (477, 171831), (583, 140589), (1107, 74041), (1143, 71709), (1353, 60579), (1397, 58671), (1431, 57277), (1749, 46863), (2173, 37719), (3429, 23903), (4059, 20193), (4191, 19557), (5207, 15741), (5247, 15621), (6519, 12573), (6731, 12177)]