213020523

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{154699}}^1$

素因数の和:154728

約数の個数: 20

約数和(自身を含む): 336936600

約数和(自身を除く): 123916077

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 154699, 464097, 1392291, 2629883, 4176873, 7889649, 12530619, 23668947, 71006841, 213020523]

約数ペア:

[(1, 213020523), (3, 71006841), (9, 23668947), (17, 12530619), (27, 7889649), (51, 4176873), (81, 2629883), (153, 1392291), (459, 464097), (1377, 154699)]