218738235

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{18251}}^1$

素因数の和:18323

約数の個数: 32

約数和(自身を含む): 378473472

約数和(自身を除く): 159735237

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 2397, 3995, 11985, 18251, 54753, 91255, 273765, 310267, 857797, 930801, 1551335, 2573391, 4288985, 4654005, 12866955, 14582549, 43747647, 72912745, 218738235]

約数ペア:

[(1, 218738235), (3, 72912745), (5, 43747647), (15, 14582549), (17, 12866955), (47, 4654005), (51, 4288985), (85, 2573391), (141, 1551335), (235, 930801), (255, 857797), (705, 310267), (799, 273765), (2397, 91255), (3995, 54753), (11985, 18251)]