211.0000000

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{12457}}^1$

素因数の和:12475

約数の個数: 32

約数和(自身を含む): 11959680

約数和(自身を除く): 7250934

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 12457, 24914, 37371, 74742, 87199, 112113, 174398, 224226, 261597, 336339, 523194, 672678, 784791, 1569582, 2354373, 4708746]

約数ペア:

[(1, 4708746), (2, 2354373), (3, 1569582), (6, 784791), (7, 672678), (9, 523194), (14, 336339), (18, 261597), (21, 224226), (27, 174398), (42, 112113), (54, 87199), (63, 74742), (126, 37371), (189, 24914), (378, 12457)]