20003643

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 33386496

約数和(自身を除く): 13382853

約数列:

[1, 3, 9, 11, 33, 37, 43, 99, 111, 127, 129, 333, 381, 387, 407, 473, 1143, 1221, 1397, 1419, 1591, 3663, 4191, 4257, 4699, 4773, 5461, 12573, 14097, 14319, 16383, 17501, 42291, 49149, 51689, 52503, 60071, 155067, 157509, 180213, 202057, 465201, 540639, 606171, 1818513, 2222627, 6667881, 20003643]

約数ペア:

[(1, 20003643), (3, 6667881), (9, 2222627), (11, 1818513), (33, 606171), (37, 540639), (43, 465201), (99, 202057), (111, 180213), (127, 157509), (129, 155067), (333, 60071), (381, 52503), (387, 51689), (407, 49149), (473, 42291), (1143, 17501), (1221, 16383), (1397, 14319), (1419, 14097), (1591, 12573), (3663, 5461), (4191, 4773), (4257, 4699)]