217972161

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^3\times {\mathrm{107}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 375321600

約数和(自身を除く): 157349439

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 99, 107, 171, 209, 297, 321, 361, 513, 627, 963, 1083, 1177, 1881, 2033, 2889, 3249, 3531, 3971, 5643, 6099, 6859, 9747, 10593, 11913, 18297, 20577, 22363, 31779, 35739, 38627, 54891, 61731, 67089, 75449, 107217, 115881, 185193, 201267, 226347, 347643, 424897, 603801, 679041, 733913, 1042929, 1274691, 2037123, 2201739, 3824073, 6605217, 8073043, 11472219, 19815651, 24219129, 72657387, 217972161]

約数ペア:

[(1, 217972161), (3, 72657387), (9, 24219129), (11, 19815651), (19, 11472219), (27, 8073043), (33, 6605217), (57, 3824073), (99, 2201739), (107, 2037123), (171, 1274691), (209, 1042929), (297, 733913), (321, 679041), (361, 603801), (513, 424897), (627, 347643), (963, 226347), (1083, 201267), (1177, 185193), (1881, 115881), (2033, 107217), (2889, 75449), (3249, 67089), (3531, 61731), (3971, 54891), (5643, 38627), (6099, 35739), (6859, 31779), (9747, 22363), (10593, 20577), (11913, 18297)]