28237221

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{61519}}^1$

素因数の和:61545

約数の個数: 16

約数和(自身を含む): 44294400

約数和(自身を除く): 16057179

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 61519, 184557, 553671, 1045823, 1661013, 3137469, 9412407, 28237221]

約数ペア:

[(1, 28237221), (3, 9412407), (9, 3137469), (17, 1661013), (27, 1045823), (51, 553671), (153, 184557), (459, 61519)]