28031589

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20357}}^1$

素因数の和:20386

約数の個数: 20

約数和(自身を含む): 44339724

約数和(自身を除く): 16308135

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20357, 61071, 183213, 346069, 549639, 1038207, 1648917, 3114621, 9343863, 28031589]

約数ペア:

[(1, 28031589), (3, 9343863), (9, 3114621), (17, 1648917), (27, 1038207), (51, 549639), (81, 346069), (153, 183213), (459, 61071), (1377, 20357)]