21957183

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47837}}^1$

素因数の和:47863

約数の個数: 16

約数和(自身を含む): 34443360

約数和(自身を除く): 12486177

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47837, 143511, 430533, 813229, 1291599, 2439687, 7319061, 21957183]

約数ペア:

[(1, 21957183), (3, 7319061), (9, 2439687), (17, 1291599), (27, 813229), (51, 430533), (153, 143511), (459, 47837)]