187654311

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 299959296

約数和(自身を除く): 112304985

約数列:

[1, 3, 9, 13, 39, 73, 117, 127, 173, 219, 381, 519, 657, 949, 1143, 1557, 1651, 2249, 2847, 4953, 6747, 8541, 9271, 12629, 14859, 20241, 21971, 27813, 37887, 65913, 83439, 113661, 120523, 164177, 197739, 285623, 361569, 492531, 856869, 1084707, 1477593, 1603883, 2570607, 4811649, 14434947, 20850479, 62551437, 187654311]

約数ペア:

[(1, 187654311), (3, 62551437), (9, 20850479), (13, 14434947), (39, 4811649), (73, 2570607), (117, 1603883), (127, 1477593), (173, 1084707), (219, 856869), (381, 492531), (519, 361569), (657, 285623), (949, 197739), (1143, 164177), (1557, 120523), (1651, 113661), (2249, 83439), (2847, 65913), (4953, 37887), (6747, 27813), (8541, 21971), (9271, 20241), (12629, 14859)]