216189

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:186

約数の個数: 20

約数和(自身を含む): 344124

約数和(自身を除く): 127935

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 157, 459, 471, 1377, 1413, 2669, 4239, 8007, 12717, 24021, 72063, 216189]

約数ペア:

[(1, 216189), (3, 72063), (9, 24021), (17, 12717), (27, 8007), (51, 4239), (81, 2669), (153, 1413), (157, 1377), (459, 471)]