217187841

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2689}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 331408000

約数和(自身を除く): 114220159

約数列:

[1, 3, 13, 19, 39, 57, 109, 247, 327, 741, 1417, 2071, 2689, 4251, 6213, 8067, 26923, 34957, 51091, 80769, 104871, 153273, 293101, 664183, 879303, 1992549, 3810313, 5568919, 11430939, 16706757, 72395947, 217187841]

約数ペア:

[(1, 217187841), (3, 72395947), (13, 16706757), (19, 11430939), (39, 5568919), (57, 3810313), (109, 1992549), (247, 879303), (327, 664183), (741, 293101), (1417, 153273), (2071, 104871), (2689, 80769), (4251, 51091), (6213, 34957), (8067, 26923)]