51187221

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{12391}}^1$

素因数の和:12423

約数の個数: 24

約数和(自身を含む): 81192384

約数和(自身を除く): 30005163

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 12391, 37173, 111519, 210647, 334557, 631941, 1003671, 1895823, 3011013, 5687469, 17062407, 51187221]

約数ペア:

[(1, 51187221), (3, 17062407), (9, 5687469), (17, 3011013), (27, 1895823), (51, 1003671), (81, 631941), (153, 334557), (243, 210647), (459, 111519), (1377, 37173), (4131, 12391)]