18809312

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 38932992

約数和(自身を除く): 20123680

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 67, 124, 134, 248, 268, 283, 496, 536, 566, 992, 1072, 1132, 2077, 2144, 2264, 4154, 4528, 8308, 8773, 9056, 16616, 17546, 18961, 33232, 35092, 37922, 66464, 70184, 75844, 140368, 151688, 280736, 303376, 587791, 606752, 1175582, 2351164, 4702328, 9404656, 18809312]

約数ペア:

[(1, 18809312), (2, 9404656), (4, 4702328), (8, 2351164), (16, 1175582), (31, 606752), (32, 587791), (62, 303376), (67, 280736), (124, 151688), (134, 140368), (248, 75844), (268, 70184), (283, 66464), (496, 37922), (536, 35092), (566, 33232), (992, 18961), (1072, 17546), (1132, 16616), (2077, 9056), (2144, 8773), (2264, 8308), (4154, 4528)]