81534321

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 133436160

約数和(自身を除く): 51901839

約数列:

[1, 3, 9, 11, 33, 43, 99, 107, 129, 179, 321, 387, 473, 537, 963, 1177, 1419, 1611, 1969, 3531, 4257, 4601, 5907, 7697, 10593, 13803, 17721, 19153, 23091, 41409, 50611, 57459, 69273, 84667, 151833, 172377, 210683, 254001, 455499, 632049, 762003, 823579, 1896147, 2470737, 7412211, 9059369, 27178107, 81534321]

約数ペア:

[(1, 81534321), (3, 27178107), (9, 9059369), (11, 7412211), (33, 2470737), (43, 1896147), (99, 823579), (107, 762003), (129, 632049), (179, 455499), (321, 254001), (387, 210683), (473, 172377), (537, 151833), (963, 84667), (1177, 69273), (1419, 57459), (1611, 50611), (1969, 41409), (3531, 23091), (4257, 19153), (4601, 17721), (5907, 13803), (7697, 10593)]