280804563

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{266671}}^1$

素因数の和:266696

約数の個数: 20

約数和(自身を含む): 451742368

約数和(自身を除く): 170937805

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 266671, 800013, 2400039, 3466723, 7200117, 10400169, 21600351, 31200507, 93601521, 280804563]

約数ペア:

[(1, 280804563), (3, 93601521), (9, 31200507), (13, 21600351), (27, 10400169), (39, 7200117), (81, 3466723), (117, 2400039), (351, 800013), (1053, 266671)]