81623556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{323903}}^1$

素因数の和:323920

約数の個数: 36

約数和(自身を含む): 235802112

約数和(自身を除く): 154178556

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 323903, 647806, 971709, 1295612, 1943418, 2267321, 2915127, 3886836, 4534642, 5830254, 6801963, 9069284, 11660508, 13603926, 20405889, 27207852, 40811778, 81623556]

約数ペア:

[(1, 81623556), (2, 40811778), (3, 27207852), (4, 20405889), (6, 13603926), (7, 11660508), (9, 9069284), (12, 6801963), (14, 5830254), (18, 4534642), (21, 3886836), (28, 2915127), (36, 2267321), (42, 1943418), (63, 1295612), (84, 971709), (126, 647806), (252, 323903)]