19997226

素因数分解:

$2^1\times 3^3\times {\mathrm{547}}^1\times {\mathrm{677}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 44585280

約数和(自身を除く): 24588054

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 547, 677, 1094, 1354, 1641, 2031, 3282, 4062, 4923, 6093, 9846, 12186, 14769, 18279, 29538, 36558, 370319, 740638, 1110957, 2221914, 3332871, 6665742, 9998613, 19997226]

約数ペア:

[(1, 19997226), (2, 9998613), (3, 6665742), (6, 3332871), (9, 2221914), (18, 1110957), (27, 740638), (54, 370319), (547, 36558), (677, 29538), (1094, 18279), (1354, 14769), (1641, 12186), (2031, 9846), (3282, 6093), (4062, 4923)]