19996656

素因数分解:

$2^4\times 3^1\times {\mathrm{257}}^1\times {\mathrm{1621}}^1$

素因数の和:1889

約数の個数: 40

約数和(自身を含む): 51891024

約数和(自身を除く): 31894368

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 257, 514, 771, 1028, 1542, 1621, 2056, 3084, 3242, 4112, 4863, 6168, 6484, 9726, 12336, 12968, 19452, 25936, 38904, 77808, 416597, 833194, 1249791, 1666388, 2499582, 3332776, 4999164, 6665552, 9998328, 19996656]

約数ペア:

[(1, 19996656), (2, 9998328), (3, 6665552), (4, 4999164), (6, 3332776), (8, 2499582), (12, 1666388), (16, 1249791), (24, 833194), (48, 416597), (257, 77808), (514, 38904), (771, 25936), (1028, 19452), (1542, 12968), (1621, 12336), (2056, 9726), (3084, 6484), (3242, 6168), (4112, 4863)]