81554067

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 146626560

約数和(自身を除く): 65072493

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 73, 161, 189, 207, 219, 257, 483, 511, 621, 657, 771, 1449, 1533, 1679, 1799, 1971, 2313, 4347, 4599, 5037, 5397, 5911, 6939, 11753, 13797, 15111, 16191, 17733, 18761, 35259, 41377, 45333, 48573, 53199, 56283, 105777, 124131, 131327, 159597, 168849, 317331, 372393, 393981, 431503, 506547, 1117179, 1181943, 1294509, 3020521, 3545829, 3883527, 9061563, 11650581, 27184689, 81554067]

約数ペア:

[(1, 81554067), (3, 27184689), (7, 11650581), (9, 9061563), (21, 3883527), (23, 3545829), (27, 3020521), (63, 1294509), (69, 1181943), (73, 1117179), (161, 506547), (189, 431503), (207, 393981), (219, 372393), (257, 317331), (483, 168849), (511, 159597), (621, 131327), (657, 124131), (771, 105777), (1449, 56283), (1533, 53199), (1679, 48573), (1799, 45333), (1971, 41377), (2313, 35259), (4347, 18761), (4599, 17733), (5037, 16191), (5397, 15111), (5911, 13797), (6939, 11753)]